Hi,

After many years working on Autocad PC I try to configure my Mac interface to preserve my efficiency. 

I used a combination keys on PC for the differents Object snap, that I can't transpose on MAC.

For example inside a command "line", I'd tape : 

- CTRL + SHIFT + Y to start from the middle of an existing line (as if I'd tape "MID")

- CTRL + SHIFT + E to connect to the perpendicular point on another line (="PER")

I tried to add these commands in the Apps Shortcuts of System preferences but it doesn't work.

Thank to anyone who could help me about this very useful setting.