Online EasyEDA V6.2.41, within Canvas Attributes I cannot change either Grid Size, Snap or Alt Snap to values below 5. Had similar when editing a Schematic Lib and a project Schematic. I'm primarily looking to move some text to better align it with other text. When creating a library part I was looking to add some small aesthetic details but couldn't draw them small enough with the given snap/alt snap
Chrome
76.0.3809.132
Windows
10
EasyEDA
6.2.41