Expand this dropdown

Hera

Hi!

Does anyone know how to get this dropdown larger, so that I might search and find easier among the material files. Earlier that dropdown used to open up almost across the screen, and it was quite easy to find what you were looking for. Now I have managed to shrink it to this size and can't for my life figure out how to expand it again.

Jabba

If you hover over the arrow at the bottom it'll scroll down, or if you place cursor over slim grey slider on right hand side then you can drag it dowun.

Hera

I saw that too, but what I want is to make the drop down larger, so I don't have to scroll as much. I want it to be able to fold out over several columns. That used to work earlier, before I managed to shrink the dropdown. And I don't know how I did it and how to return it to its original shapes. I've been looking in settings for that now for a while.