How do you remove an AC Modifier?

[ubiquitousrat]

Hello!

Nube question, probably, but here goes:

When trying to figure out if armour auto modifies AC (which it apparently doesn't), I dragged the Chainmail icon onto the AC entry in the character sheet. This added a +16 modifier in a little box above the AC figure.
Question: How do I remove that modifier box?

It won't click, grab, or otherwise change if I open and edit the AC tab.

Can you help?

[Mask_of_winter]

Hold Ctrl+ mouse wheel down over the AC shield
To edit AC properly you must click on the magnifying glass to the left of the AC shield and fill out the fields there.

[Trenloe]

What Mask says is correct. The AC shield control is a number field with the "temporary modifier" functionality. Further info in "Temporary Modifiers" in the Wiki here: https://www.fantasygrounds.com/wiki/index.php/The_Basics#Number_Fields