Lock mode to Utility in NEI config?

So I'm running a Minecraft FTB (TPPI) server for me and some friends, and I want to lock NEI to utility mode. I found the config option:

#For those who can't help themselves.
#Set this to a mode and you will be unable to change it ingame
lockmode=-1
profileRecipes=false
utilities=delete, magnet

but I can't find any info on what to set lockmode too. I would also be able to deop everyone if I did this, so they wouldn't have to be opped to use utility mode.

Solution 1:

in terms of wanting to De-op people but still have them able to use utilities in my config files there is a config file called NEIserver where you can set utilities such as HEAL to be allowed by "ALL" or "OP" or "NONE". For example i set HEAL = ALL so that everyone can use the heal utility

Hope this helps

Solution 2:

As you have said your config file looks like this:

#For those who can't help themselves.
#Set this to a mode and you will be unable to change it ingame
lockmode=-1
profileRecipes=false
utilities=delete, magnet

You need to change it to this:

#For those who can't help themselves.
#Set this to a mode and you will be unable to change it ingame
lockmode=1
profileRecipes=false
utilities=delete, magnet

lockmode can be set to

1. lockmode=-1     #this is unlocked (can change the mode in game).
2. lockmode=0      #Recipe just the recipes no spawning in items.
3. lockmode=1      #Utility the one that you wanted.
4. lockmode=2      #Cheat locks the game on cheat mode.