C o n f i g u r a t i o n

File->Option opens the general options box of Sketch.

Here are the available settings:

Undo levels :

Provided your system is equipped with a large quantity of RAM (64 Mo), you can set it to infinity.

The 2 settings here are specific to the shift between elements.
In the following example vertical shift is set to 0 and horizontal is set to 50 If you use the transformation tool you will obtain the same results buts elements will not be independent, so you won't be able to modify them individually. Therefore, duplicate is more precise.

Concerning its grid and guides, Sketch offers several measurement units : dots, inches, cm and mm. This parameters are active only when you click OK in the dialog box.