Do any of the tools or dyes decapp and swage at the same time?
Well, since decapping is pushing the primer out
of the pocket, it is probably going to be difficult to swage the crimp out of the pocket at the same time, as that involves pushing a swaging rod into
(You may have noticed a second rod in the RCBS unit, which is adjusted so it supports the primer pocket from the inside of the case. It doesn't swage.)
I believe there are dies available for the larger progressive presses (meaning lots of stations) which perform decapping and swaging at different stations. So, yes, you could say it is happening at the same time...to different cases.