Ok... I just grabbed the manual.
Like our VTCs, you can change display options like the Amps/Puff Count/Time meter in the bottom left corner.
My guess is... if you can 3 click to get that to flash so you can Right button cycle through the options... then a Left click will cycle through the available selections on that screen.
For the VW (Power Mode) screen those should be the actual mode (VW, TC, TCR), the Amp/Puff/Time display and the battery display.
Get the batt icon to flash and then toggle its' display.
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And I (and others) may owe you a partial apology about removing the inner batteries.
The positive terminal "rings" molded into the battery sled are JayBo's innovative, but PITA, solution to the DNA200 board's lack of "reverse polarity protection".
They're neither needed nor used in the RX as the Wismec board has that function built-in.
I didn't realize until seeing the pics on the Wismec site that they've apparently used a DNA Reuleaux sled in the RXS. Sorry.
You need to get a grip on the cell and press to depress the spring loaded button (?) so the positive end will come free of the raised ring. Reverse to install.
I haven't heard that it's particularly difficult... just that the ring will tear battery wraps if you're not careful.
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Oh crap, just remembered... there's also an issue of
some 18650s being a couple of mm shorter than average. That's normally not an issue, but can be with those sled rings... a sharp bump can cause a momentary loss of connectivity and the mod will power down.
The Samsung 25R is one of those batteries.