Change Grid Sizes

I'd love it if there were an option to adjust the size and position of grid sections. For example, on the main page of my hub, I'd love to have a fancy menu with icons that people can click to access the content. If I have 6 items, it would require me to create two grids (one with 4 items, one with 2 items). The issue is that whenever you have a grid with two items, they appear significantly bigger than the icons in the 4 item grid. So it would be super helpful if there were a way to adjust the size of the grid icons and their positioning (this way I could centre the 2-item grid). I realize I could just use a sliding section, but then that makes it harder to people to find some of the main content of my hub without clicking to reveal the hidden icons. Hopefully this makes sense.