This might not be exactly what you asked for but it might function for the user they way you want. Say for example your current code for that popup looks like this:
Code:
-
#UtraSPARC
.Join: { }

AdminServ
.blah: { }

OperServ
.IRCop: { }

ChanServ
.Register #: { }

NickServ
.Identify: { }
.Ghost:    { }

Scan/Search
.something: { }
-

Change it to:
Code:
-
#UtraSPARC
.Join: { }

$iif(%ServPops, AdminServ)
.blah: { }

$iif(%ServPops, OperServ)
.IRCop: { }

$iif(%ServPops, ChanServ)
.Register #: { }

$iif(%ServPops, NickServ)
.Identify: { }
.Ghost:    { }

Scan/Search
.something: { }
-

And then use one of these set commands to turn those menu items on/off:
set %ServPops On
set %ServPops $false

Or say you want those menu items to depend on wether or not the module “ServsScript.ini” is loaded, you can change the menu items to:
$iif($script(ServsScript.ini), AdminServ)