Put quotes around.
ttt_propkillers_temp_canadd "owner;superadmin;moddeddev;admin;mod"

Is this the correct format to put in server.cfg or am I doing something wrong?

ttt_propkillers_temp_canadd owner;superadmin;moddeddev;admin;mod

Thanks for the confirm.

Tested it and can confirm that it works. Thanks for you quick response and fix.

Okay. I cannot give it a try but I did it.
Add this line in your garrysmod/cfg/server.cfg:
ttt_propkillers_private 1

Huh, I thought that the blocked person does not see the message.
Let me check it out.

When we add some people to the list of people that can't carry props (permanently or map only) they'll get mad and start RDMing making it more work for us. Limiting it to only the person adding them or staff only would make this less of a concern.

Why the heck would you want to hide this?

While it's been a good year and a half since this was updated is there anyway to hide the notification of people being added?

No, it only affects the magneto stick from the TTT.

does this work for sandbox?

The goal is to prevent abusive propkills.

But propkilling is fun

that's cool, That feature would be fantastic thankyou!

The method Player:IsAdmin() must return true in order to allow modifications. In detail, it must return true clientside to display the buttons and it must return true serverside to allow the modifications.
I have not set a list of ranks. Do you want this feature?

Sorry, just making sure :) Also I was talking to the owner of the server trying to put this in, but it says he can't use it, Do you have to be Admin rank only, is there somewhere to change what ranks can be used or is there a specific way to install?

Specific people, of course... The screenshot shows you that. ^^

So just to clarify you are able to stop specific people from picking up props or does it stop everyone?

:-) Yes it is very useful. BTW, have a look at my other addons. ;-)

awesome work btw

thanks
sorry dumb moment

Hello, just type !propkillers in chat! ;-)

how do you prevent people

Thank you for your report. I do not know why I have never got this error, but it is corrected.

Erreur lua :
[ERROR] addons/ttt stop propkillers admin tool/lua/autorun/menu.lua:169: attempt to index global 'ply' (a nil value)
1. SetNewState - addons/ttt stop propkillers admin tool/lua/autorun/menu.lua:169
2. func - addons/ttt stop propkillers admin tool/lua/autorun/menu.lua:182
3. unknown - lua/includes/modules/net.lua:31

tu peux régler sa ?