Complete Reference for D&D

There are monsters in app that have CR of 1/2, 1/4, 1/8 etc... and also have EXP right next to CR. But my monsters made on online content creator cant have CR of 1/2, 1/4, 1/8 neither do they have EXP presented next to CR. Is there a way to fix this?

Is there a way to permanently add image to existing/custom monsters so that you dont have to use "google image" option?