If this has already been done....well......like Conor McGregor said....I won't apologise (politely translated )
(it started from this thread: https://www.sidefx.com/forum/topic/53570/)
This will convert group somegroup123 to attribute 123 so you can process the new attrib as a number ! 'Nuff said...on to the vid:
vu_convert_suffix.hdanc