It appears some modules DO have info, so the feature is there.
Example: the GAME LOGIC module has an info textbox.

Many other modules/logics however do not have this info textbox.

Probably needs to be expanded for all other modules/logics in the future?

I have the same issue: Compass is small and on double LMB click, it just moves to a different location. It does not enlarge.

I had the same problem after patch 1.22.125.469

During a Zeus Game Master I wanted to place some standard ammoboxes and adjust the content within. So I cleared the box and added some items (1 unit of each). Then I wanted to change the amount of some of them but for some reason I can add/subtract quantities for the first item in the list, but not the 2nd, 3rd...and so on. The count just stops at 1 and won't continue.
Also the item can not be set to 0 but goes to infinte instead. When it is set on infinite the item is deleted from the ammobox.
This wasn't a problem before the patch.
Here's a video of what happens.
https://www.youtube.com/watch?v=OVX590VMabs

The mapmarker-issue is annoying. I don't understand why it has to be a cycle-proces.
Why can't it be a simple popup with a table to choose the marker from and some palletes to choose the color of the marker. This is a 3 click process. If needed the marker can be rotated using the arrow-keys left and right.
Once the marker is placed, it will default to the last placed marker...plotting out a route is now very fast.