As for transferring the powder charge from a cup into the case, while the case is in the 750, this was my solution.
In the normal second stage powder charge position, I either the station empty of tool or put in the Dillon powder funnel die with the lower half but not the powder measure itself that comes off the die.
Either way, while the ram is in the up position, I would stop, grab the cup and my handheld powder funnel, and pour the powder into the case. Then continue with the down stroke and the next up stroke, repeat.