After digging a few months now in Drupal 7 and learned the basic concepts of the architecture i am stuck on something that looks pretty straight forward... .
I know how to alter forms that are in the website (such as the search form or the login form)... but i can't get it work to alter the node edit/create form (the one that shows up in the "overlay"... with the (custom)fields.
What i want to achieve is to change the default value of a select field when the form pops up in the overlay.
I tried the _form_alter(...) en also the admin theme seven_form_alter(...) hook but nothing gave the opportunity to alter the node edit/create form... . Can someone give me the right push to get back on track? Google didn't help me further on this one and am getting a little bit depressed... .
Links like these, i hoped helped but they didn't: drupal alter node edit form
thx