ID ad DateBrowser Info Environment
You need to create a template for the proforms_list. Create a new folder in /blocks called proforms_list then inside that create a folder called templates. Should end with something like this: /blocks/profroms_list/templates. You then make a copy of /packages/proforms/blocks/proforms_list/view.php in the newly created templates directory and rename it to something like my_list.php. Note: that whatever you name the file is how it is going to show up in the list of custom templates later.
Now open up that file and around line 51-53 you are going to see a <th> container that has the code for the ID# column header. Look for "ProformsItemID".
<td><?php echo $noO->getProformsItemID()?></td>
Now after you add a ProForms List block you'll be able to choose this new Custom Template to use! Remember it is going to show up how ever you named it. i.e. My List.