Small grid for rotation has a step of 0.5° which might be too big for what you want to do. You can use the keyboard shortcut for that. Select the pivot point then press R, press X or Y or Z (depending on which axis you want to rotate), to finish type the rotation value. e.g. 0.25 for 0.25°

I can't type a value in rotation as it is a group of parts that i want to rotate 😦

I am not talking about the property section in the right hand side toolbar.
This is another function.

E.g. if you want to increment the rotation around the select X axis of you group/part/selection by 10° only use your keyboard:

1. Press R (a yellow tooltip will appear on the top of your screen)
2. Press X
3. Type 10

Aaaah in understand what you mean. Thank you very much. This helps but i don't know if the next parts will fit this spot. I'll check it out thx

Hello,
I think i'm building the same model (10030 Imperial Star Destroyer), and i'm experiencing the same issue with bricks that do not fit exactcly after rotation. Did you manage to fix it ? Or is it something that only real bricks can manage with a slight deformation hardly reproducible in mecabricks ?

@Scrubs, didn't know that keyboard shortcut yet. Blender-style accuracy, like pressing shift to get transformations exactly right!

This is in the shortcut list posted in the forum but to make it more visible I am making an additional proper UI that will be put in the new tab "Move".

👍