When doing INSERT PAGE, default units are inches (I am using mm as a default unit).
Can I change that?
1. Create a new page
2. change the units to mm
3. At the top of the screen click the menu named Tools
4. click in the tools menu Save Settings As Default
Skip steps 3. and 4. by doing the following: press and hold the "ALT" key and press "o" and then press "d" and then release the "ALT" key.
Now all your new inserted pages will be in mm :)