How to edit a webform block (not the webform itself) I have one webform block I would like to edit. I know I can use hook_form_alter, the problem is that any changes I make using it are affecting the actual webform plus the block.

How can change stuff just on the webform block? It's just a captcha component I want to disable, thanks.
probably the easiest way is to create a separate form for that block (a copy of what you have now, but dedicated to that block), and disable Captcha for that form name