Disable ALT menu tipkeys

Hello everyone, 

I have seen that there several threads about this issues but no real solutions. 

The alt keys triggering the tipkeys is a nighmare. I had found a solution online to solve this issues (without having to use different keys to confirm segments) but recently I had to reinstall studio and the problem came back again. Now I cannot find the solution online, I remember that I had to disable something in Studio, and I was wondering if someone could help.

Thank you

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