diff --git a/emhttp/plugins/dynamix.vm.manager/include/libvirt.php b/emhttp/plugins/dynamix.vm.manager/include/libvirt.php
index 93d98dac2..314901baa 100644
--- a/emhttp/plugins/dynamix.vm.manager/include/libvirt.php
+++ b/emhttp/plugins/dynamix.vm.manager/include/libvirt.php
@@ -1801,7 +1801,7 @@
 		}
 
 		function domain_define($xml, $autostart=false) {
-			if (strpos($xml,'<qemu:commandline>')) {
+			if (strpos($xml,'<qemu:commandline>') || strpos($xml,'<qemu:override>')) {
 				$tmp = explode("\n", $xml);
 				for ($i = 0; $i < sizeof($tmp); $i++)
 					if (strpos('.'.$tmp[$i], "<domain type='kvm'") || strpos('.'.$tmp[$i], '<domain type="kvm"'))
diff --git a/emhttp/plugins/dynamix.vm.manager/include/libvirt_helpers.php b/emhttp/plugins/dynamix.vm.manager/include/libvirt_helpers.php
index 5c68ec5fa..efb362397 100644
--- a/emhttp/plugins/dynamix.vm.manager/include/libvirt_helpers.php
+++ b/emhttp/plugins/dynamix.vm.manager/include/libvirt_helpers.php
@@ -1569,6 +1569,18 @@ private static $encoding = 'UTF-8';
 		return substr($xml,$x, ($z + 19) -$x) ;
 	}
 
+	function getQEMUOverride($xml) {
+		$x = strpos($xml,"<qemu:override>", 0) ;
+		if ($x === false) return null ;
+		$y = strpos($xml,"</qemu:override>", 0)  ;
+		$z=$y ;
+		while ($y!=false) {
+			$y = strpos($xml,"<qemu:override>", $z +16)  ;
+			if ($y != false) $z =$y  ;
+		}
+		return substr($xml,$x, ($z + 16) -$x) ;
+	}
+
 	function getchannels($res) {
 		global $lv ;
         $xml = $lv->domain_get_xml($res) ;
diff --git a/emhttp/plugins/dynamix/DeviceInfo.page b/emhttp/plugins/dynamix/DeviceInfo.page
index 5d0a43802..85c2cc576 100755
--- a/emhttp/plugins/dynamix/DeviceInfo.page
+++ b/emhttp/plugins/dynamix/DeviceInfo.page
@@ -45,6 +45,9 @@ $prev = $i>0 ? $sheets[$i-1] : $sheets[$end];
 $next = $i<$end ? $sheets[$i+1] : $sheets[0];
 $text = isPool($name) ? _('This will ERASE content of ALL devices in the pool') : _('This will ERASE ALL device content');
 
+function disabled_if($condition) {
+  if ($condition !== false) echo ' disabled';
+}
 function sanitize(&$val) {
   $data = explode('.',str_replace([' ',','],['','.'],$val));
   $last = array_pop($data);
@@ -610,10 +613,10 @@ _(Spin down delay)_:
 _(File system status)_:
 : <?=_(_var($disk,'fsStatus'))?>&nbsp;
 
-<?$disabled = (_var($var,'fsState')=="Stopped" && !empty(_var($disk,'uuid'))) || (_var($var,'fsState')=="Started" &&  _var($disk,'fsType')!='auto') ? "disabled" : ""?>
+<?$fsTypeImmutable = (_var($var,'fsState')=="Stopped" && !empty(_var($disk,'uuid'))) || (_var($var,'fsState')=="Started" &&  _var($disk,'fsType')!='auto')?>
 <?if (diskType('Data') || (!isSubpool($name) && _var($disk,'slots',0)==1)):?>
 _(File system type)_:
-: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="changeFsType()" <?=$disabled?>>
+: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="changeFsType()" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsType'), "auto", _('auto'))?>
   <?=mk_option(_var($disk,'fsType'), "xfs", _('xfs'))?>
   <?=mk_option(_var($disk,'fsType'), "zfs", _('zfs'))?>
@@ -629,14 +632,14 @@ _(File system type)_:
 
 <?elseif (!isSubpool($name) && _var($disk,'slots',0)>1):?>
 _(File system type)_:
-: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=$disabled?>>
+: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsType'), "auto", _('auto'))?>
   <?=mk_option(_var($disk,'fsType'), "zfs", _('zfs'))?>
   <?=mk_option(_var($disk,'fsType'), "btrfs", _('btrfs'))?>
   <?=mk_option(_var($disk,'fsType'), "luks:zfs", _('zfs')." - "._('encrypted'))?>
   <?=mk_option(_var($disk,'fsType'), "luks:btrfs", _('btrfs')." - "._('encrypted'))?>
   </select>
-  <select id="diskFsProfileBTRFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" style="display:none" <?=$disabled?>>
+  <select id="diskFsProfileBTRFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" style="display:none" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsProfile'),"single", _('single'))?>
   <?if (_var($disk,'slots',0)>=2) echo mk_option(_var($disk,'fsProfile'),"raid0", _('raid0'))?>
   <?if (_var($disk,'slots',0)>=2) echo mk_option(_var($disk,'fsProfile'),"raid1", _('raid1'))?>
@@ -646,7 +649,7 @@ _(File system type)_:
   <?if (_var($disk,'slots',0)>=3) echo mk_option(_var($disk,'fsProfile'),"raid5", _('raid5'))?>
   <?if (_var($disk,'slots',0)>=4) echo mk_option(_var($disk,'fsProfile'),"raid6", _('raid6'))?>
   </select>
-  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" style="display:none" onchange="selectDiskFsWidth()" <?=$disabled?>>
+  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" style="display:none" onchange="selectDiskFsWidth()" <?=disabled_if($fsTypeImmutable)?>>
   <?if (_var($disk,'slots',0)==1) echo mk_option(_var($disk,'fsProfile'),"", _('single'))?>
   <?if (_var($disk,'slots',0)>=2) echo mk_option(_var($disk,'fsProfile'),"", _('raid0'))?>
   <?if ((_var($disk,'slots',0)%2)==0 || (_var($disk,'slots',0)%3)==0 || (_var($disk,'slots',0)%4)==0) echo mk_option(_var($disk,'fsProfile'),"mirror", _('mirror'))?>
@@ -654,34 +657,34 @@ _(File system type)_:
   <?if (_var($disk,'slots',0)>=3) echo mk_option(_var($disk,'fsProfile'),"raidz2", _('raidz2'))?>
   <?if (_var($disk,'slots',0)>=4) echo mk_option(_var($disk,'fsProfile'),"raidz3", _('raidz3'))?>
   </select>
-  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=$disabled?>>
+  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=disabled_if($fsTypeImmutable)?>>
   </select>
 <?elseif (isSubpool($name)=="special" || isSubpool($name)=="logs" || isSubpool($name)=="dedup"):?>
 _(File system type)_:
-: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=$disabled?>>
+: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsType'), "zfs", _('zfs'))?>
   </select>
-  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsWidth()" <?=$disabled?>>
+  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsWidth()" <?=disabled_if($fsTypeImmutable)?>>
   <?if (_var($disk,'slots',0)==1) echo mk_option(_var($disk,'fsProfile'),"", _('single'))?>
   <?if (_var($disk,'slots',0)>=2) echo mk_option(_var($disk,'fsProfile'),"", _('raid0'))?>
   <?if ((_var($disk,'slots',0)%2)==0 || (_var($disk,'slots',0)%3)==0 || (_var($disk,'slots',0)%4)==0) echo mk_option(_var($disk,'fsProfile'),"mirror", _('mirror'))?>
   </select>
-  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=$disabled?>>
+  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=disabled_if($fsTypeImmutable)?>>
   </select>
 <?elseif (isSubpool($name)=="cache"):?>
 _(File system type)_:
-: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=$disabled?>>
+: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsType'), "zfs", _('zfs'))?>
   </select>
-  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsWidth()" <?=$disabled?>>
+  <select id="diskFsProfileZFS" name="diskFsProfile.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsWidth()" <?=disabled_if($fsTypeImmutable)?>>
   <?if (_var($disk,'slots',0)==1) echo mk_option(_var($disk,'fsProfile'),"", _('single'))?>
   <?if (_var($disk,'slots',0)>=2) echo mk_option(_var($disk,'fsProfile'),"", _('raid0'))?>
   </select>
-  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=$disabled?>>
+  <select id="diskFsWidthZFS" name="diskFsWidth.<?=_var($disk,'idx',0)?>" style="display:none" <?=disabled_if($fsTypeImmutable)?>>
   </select>
 <?elseif (isSubpool($name)=="spares"):?>
 _(File system type)_:
-: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=$disabled?>>
+: <select id="diskFsType" name="diskFsType.<?=_var($disk,'idx',0)?>" onchange="selectDiskFsProfile(false)" <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk,'fsType'), "zfs", _('zfs'))?>
   </select>
 <?endif;?>
@@ -689,8 +692,7 @@ _(File system type)_:
 <?if (isSubpool($name)===false):?>
 <div markdown="1" id="compression" style="display:none">
 _(Compression)_:
-<?$disabled = _var($disk,'fsStatus')=='Mounted' ? "disabled" : ""?>
-: <select id="diskCompression" name="diskCompression.<?=_var($disk,'idx',0)?>" <?=$disabled?>>
+: <select id="diskCompression" name="diskCompression.<?=_var($disk,'idx',0)?>" <?=disabled_if(_var($disk,'fsStatus')=='Mounted')?>>
   <?=mk_option(_var($disk,'compression'), "off", _('Off'))?>
   <?=mk_option(_var($disk,'compression'), "on", _('On'))?>
   </select>
@@ -700,8 +702,7 @@ _(Compression)_:
 
 <div markdown="1" id="autotrim" style="display:none">
 _(Autotrim)_:
-<?$disabled = _var($disk,'fsStatus')=='Mounted' ? "disabled" : ""?>
-: <select id="diskAutotrim" name="diskAutotrim.<?=_var($disk,'idx',0)?>" <?=$disabled?>>
+: <select id="diskAutotrim" name="diskAutotrim.<?=_var($disk,'idx',0)?>" <?=disabled_if(_var($disk,'fsStatus')=='Mounted')?>>
   <?=mk_option(_var($disk,'autotrim'), "on", _('On'))?>
   <?=mk_option(_var($disk,'autotrim'), "off", _('Off'))?>
   </select>
@@ -710,8 +711,7 @@ _(Autotrim)_:
 </div>
 <?if (isPool($name)):?>
 _(Enable user share assignment)_:
-<?$disabled = _var($var,'fsState')!="Stopped" ? "disabled" : ""?>
-: <select id="shareEnabled" name="diskShareEnabled.<?=_var($disk,'idx',0)?>" onchange="freeSpace(this.value)" <?=$disabled?>>
+: <select id="shareEnabled" name="diskShareEnabled.<?=_var($disk,'idx',0)?>" onchange="freeSpace(this.value)" <?=disabled_if(_var($var,'fsState')!="Stopped")?>>
   <?=mk_option(_var($disk,'shareEnabled'), "yes", _('Yes'))?>
   <?=mk_option(_var($disk,'shareEnabled'), "no", _('No'))?>
   </select>