over 8 years ago - /u/yannickbch - Direct link

We're actually adding something very close to your suggestion with the next PTS.

Performance mod slots will be shown on the right of the gear icon, and normal mod slots will be shown on the left.

Also, when trying to mod an item, only mods that can actually be equipped on this item will appear (if it only has normal mod slots, only normal mods will show).