So, I was wondering if it's possible to use the GT-10 for the effects only. For example, I want to have my amp sound, and use the GT-10 for only delay. Is that possible? Or chorus, reverb, etc ...

If it's possible, how do you do it? The pedal is kinda confusing and hard to understand properly.

Thanks for your help!
You can just bypass the amp model. Did you try that?
Guitars: Fender FSR Standard Strat, Squire Affinity Strat, Epiphone Nighthawk
Amps: Vox AC15C1, Roland Cube 15x, Peavey KB-1
Pedals: Digitech RP355, HD500, Joyo AC-Tone, EHX Soul Food