Absolute beginner here. I would like to make a very simple 2D animation using Blender, but am stuck at the very basic level, I don't even manage to enable a grid. I have searched the internet a lot for guides and video introductions, and found quite a lot of them, but none seem to show what you need to do to enable a grid, and snap-to that grid.
When first opening a new "2D animation", there is a menu at the top that says "Guides", which seems to be intended to enable a grid, but it is greyed out, and selecting something in it does not change anything. After placing a first rectangle, the menu disappears.
So, how can I enable a grid, and enable snap-to the grid in the 2D Animation interface of Blender?