Siglent SDS1052DL+ how to measure voltages!?!

Just bought this scope, im new to this, and no tech 🙁.
I've read the manual, looked at videos and still, can't measure sine and even DC voltages with that!. Somebody give me the cheapest multimeter or even a tape measure!...
Is this model non-intuitive? or i'm the idiot? (maybe i am! 🙂
 
Ok, did some experimenting and, channel 2 is the one not showing any voltages.
I open-up the ''voltage box'' in channel 2 and, absolutely no numbers show-up...
Channel 1 is showing em.

Connect both probes to the same signal. If using the internal square wave,
it is not necessary to connect the grounds at all. Now both traces should be
the same if you choose auto setup. If they are superimposed, use the vertical
position for CH1 to move one up a little.
 
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