My suggestion is to introduce an option which would be called builds. Every and each mod that the player owns and can be used by his/her weapon/warframe would be shown and usable in a build (even if the mod is already placed in other builds). The player could even rename the build for ease of use. The player could then easily switch between builds and would not have to change mod by mod which can sometimes be time consuming and annoying.
P.S. I hoep this isn't plagiarism, if it is I apologize in advance. Hope you like the idea :DRead more >