Is it possible to generate static captions for all diagrams that have the AA object style applied?

@dublove

All at once - but you can only set ParaStyle:

https://www.montilladesign.com/post/learn-how-to-generate-static-captions-in-adobe-indesign-layouts

But if you really need an ObjStyle to be applied - a simple JS script can find all texts with ParaStyle you've selected, then apply your ObjectStyle to the parentTextFrame[0].

Here's what I've done in the past...

Create a image frame, format with Frame Fitting Options, and create an Object Style.

Add captions for the images in the XMP area in Adobe Bridge. (Good job for an editor with a free version of Creative Cloud.)

Create a text variable linked to the XMP caption.

Create a text frame and insert the text variable. 

When the frame touches the image frame, the variable will show up. (I used text frame insets to move the text away from the image edge.)

I added an empty image frame and text frame with the variable to an InDesign library. 

Just dragged it out when needed.

You can do something similar: add the captions in Bridge, create the variable, and create the text frame with variable. Alt/Opt drag copies as needed.

I suspect there's more to your story here. 

Can you share more details - as usual the more we know about your issues the more the answer grows 😄 

Are your diagrams placed image files, or are they created directly in InDesign using shapes and lines? 

Experiment with Built-in Captions (if applicable): If you are using placed images, try adapting InDesign's built-in caption feature.

See if it can be made to work for your needs with metadata and text style application.

https://helpx.adobe.com/indesign/using/captions.html

If built-in captions are insufficient, maybe can be done with InDesign scripting.

• Select objects by object style.
• Create text frames.
• Position objects relative to each other.
• Apply text styles and object styles.

But let us know what exactly you're doing, what's not working and why it's not working, and your exact needs so we can better help you.

Thanks