LUA Questions

[The Pharaon]

HI everyone,

I am a newbie in LUA, I don't know a thing about it apart of the fact I can read it, I am not able to code something properly.

I used the 2017 tutorial video which I can follow easily and replicate what's done in it
I read the F1 page in game and the list of LUA codex in the forum. I've been searching for a while.



My 1st question is :
I will call Manual Interruptors slots MU to simplify.

if MU1 and MU2 are activated then MU3 activates
if MU3 is activated then screen.setCenteredText("Hello Test")

How can I write this correctly. I can't figure out the If, and, then correctly.
Even looking at tutorial i can't figure it out.
 

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Second question (a Detection Zone slot is named DZ to simplify) :

 

How to retrieve my ID and someone else's with "database.getPlayer(ID).name" ? How to call it correctly in my slot on my Detection Zone
So, I would like :

if ID enters DZ then screen.SetCenteredText("Test enter")

Thank you for your help