How to access your Grids
First, open the "hamburger" menu at the top left of your account (cf. red arrow in screenshot below)...
...then, choose "Grid" at the bottom!
Use the drop-down menu on the opening view to select your grid, e.g. the one for "Machine Vision":
Hint: it might be even more convenient to just bookmark the URL after you selected a grid and the just re-open it any time you need it!