ok so lately ive been at my friends house and i saw that he was using simplicity..and he changed it around with photoshop so i have a few questions
1. how can you make it so that the toolbar can show more than 17 tiles and still have lots of tiles? he had 16 tiles and still had a lot of space

2. i want to edit the toolbar with photoshop, but when i save it it doesnt take effect.

it would be really helpful if you guys can help me

edit.. he was able to show 17 tiles at once along the toolbar

Ask him he did it!
Also try a recycle after you save the image!