How can I change Button size

Hi everyone.

I want to change dashboard button size but the min limit is for example 1cm and I want it less, you can see what I want in picture below.

you can use the site sizes to change any of the geometry for the layout grid

Changing the 1x1 vertical size will reduce the height of every row including buttons,

Where is this menu, I just want to resize dashboard button size smaller.

It is in the dashboard sidebar in the editor. The grid applies to all elements - you cannot change the height of just one as it will break the grid layout.

Found it. Thank you for all of your helps