Since the title mentions that you are missing the State commands in the dropdown list, did you create multistate objects with Custom states? InBuilt states cannot always be addressed by a State command, both for interactive objects and for D&D objects. Here is another link:

https://blog.lilybiri.com/button-states-basics-and-tips

Please, I need more information. Try to use real screenshots instead of a photo because I cannot even read the action. Moreover you’d better use the Preview feature in the Advanced Actions dialog box, because it will show the complete action, whereas you are only showing the THEN part of the action. I can see that you checked the radio button for Conditional in this first decision. You find it under the marked button in the attached screenshot.

BTW: have a look at this blog post explaining the Advanced Actions dialog box in-depth:

https://blog.lilybiri.com/advanced-actions-dialog-box-in-captivate-2017

For sure I would like to help, but need to get the necessary details. What do you want to show in the Custom TOC, how did you set it up besides the action which you show in the photo? Is that TOC available on each slide, or do you have it pop up using a button? I vaguely see that some commands are dimmed. Is this a responsive or a non-responsive project? If it is responsive, did you use Fluid Boxes or Breakpoint Views?