Created this, because I was pasting a lot from Clipboard directly into Opus. Someone could probably use some cunning to modify it and increment the file number, but I'm sadly not that smart so would really appreciate someone to extend it like that.
I dropped this into the lister context menu next to Paste.
<?xml version="1.0"?>
<button>
<guid>{4456497A-227D-4F42-A55E-E6F40B97481B}</guid>
<label>Paste JPEG</label>
<tip>Paste Clipboard as JPEG</tip>
<icon1>223</icon1>
<function>
<instruction>Select NONE</instruction>
<instruction>Clipboard PASTE</instruction>
<instruction>Select PATTERN "Clipboard Image.bmp"</instruction>
<instruction>Image HERE CONVERT=jpg QUALITY=75</instruction>
<instruction>Delete QUIET </instruction>
</function>
</button>