Feature Request: save last inputted rate multiplier number in selection history.

[WDLBPH]

Dunno if it's valid, but I took a look and didn't see this in the other posts and thought I would ask anyway. I find it kind of annoying when I go back to the second or third last selection and don't see the rate multiplier number when I'm working with multiple different numbers for separate parts of a new factory setup I'm planning out. Would be nice for my memory and workflow if it saved it, I know there's Helmod and other calculators for that kind of thing but I still really like the in-world, no stress intuitive nature of working with this rate calculator a lot better. Thanks for maintaining the mod, it's awesome.