FIRST WAY - standalone 2D drawing not relate to any existing 3D model:
<?xml version="1.0" encoding="UTF-8"?>
<Palette xmlns="http://www.ugsolutions.com/Schemas/2001/UGPalettes" schemaVersion="1.0">
  <Presentation FileNewTab="Drawing" UsesMasterModel="No" Environment="Managed" name="Drawing Templates (Inch)"/>
  <PaletteEntry id="d1">
    <References/>
    <Presentation name="D Inch" description="Creates 8.5in x 11in size drawing" tooltip="Custom template.">
        <PreviewImage type="UGPart" location="@DB/D_Inch/A"/>
    </Presentation>
    <ObjectData class="DrawingTemplate">
        <Filename>@DB/D_Inch/A</Filename>
        <Units>English</Units>
      <RelationType>master</RelationType>
       <ItemType>Item</ItemType>
    </ObjectData>
  </PaletteEntry>
 
</Palette>
SECOND WAY - Master Model drawing (specification) that is related to a 3D model:
<?xml version="1.0" encoding="UTF-8"?>
<Palette xmlns="http://www.ugsolutions.com/Schemas/2001/UGPalettes" schemaVersion="1.0">
  <Presentation FileNewTab="Drawing" UsesMasterModel="Yes" Environment="Managed" name="Drawing Templates (Inch)"/>
  <PaletteEntry id="d1">
    <References/>
    <Presentation name="D Inch" description="Creates 8.5in x 11in size drawing" tooltip="Custom template.">
        <PreviewImage type="UGPart" location="@DB/D_Inch/A"/>
    </Presentation>
    <ObjectData class="DrawingTemplate">
        <Filename>@DB/D_Inch/A</Filename>
        <Units>English</Units>
       <UsesMasterModel>Yes</UsesMasterModel>
       <RelationType>specification</RelationType>
       <ItemType>Item</ItemType>
    </ObjectData>
  </PaletteEntry>
 
</Palette>