Well, normally the answer to your question is an easy "yes" since a simple conditional switch could be added to the options to make them visible or not on the fly... but I'll have to look into it further with DK's coding since he calls for the side image on every single dialogue statement in his scripts. To demonstrate what I'm referencing take note of this random snippet:
Python:
scene 2ass351 with dissolve
he p "Ohhhhhh..."
p p2 "What? What's wrong?"
he p "The room... It's spinning with me..."
p p2 "Don't fall again! I got you!"
In the above the characters are referenced by their variables (this is normal), in this case "he" for Heather and "p" for the Player. Now, note the next segment (in this particular example) right after the char variable being "p"/"p2". These specifically call the side image to be used during that specific dialogue statement. They correlate to the side image file names as seen in the pic here:
View attachment 2705030
This type of use isn't common as most developers already use a very simplistic condition switch which the mod's Core can already easily plug into. In this case though I'll have to see if I can write a more elaborate condition switch than what would normally be used to solve your request (DK isn't using condition switches at all). It's why you don't see some of the mod's most advanced features utilized in these DK VN's, the coding is a bit whack if I'm being honestly... but it is what it is.
I'll see what I can do during free time.
Regards.