As another user ( tjmack321 ) wrote, this great mod uses a lot of vertical screen-space with all 20 extra slots researched.
Is there any possibility for having the arrangement being 2 by 2 instead of 1 by 4?
Now:
1234567890
1234567890
1234567890
1234567890
Suggestion:
1234567890 1234567890
1234567890 1234567890