I have no idea what you mean, but one of these two should answer your question.
function serverCmdactivatepackage(%cl,%package) {
if(%cl.isSuperAdmin && isPackage(%package))
activatePackage(%package);
}
//Client; I HIGHLY recommend you don't use something like this.
function clientCmdactivatePackage(%package) {
if(isPackage(%package))
activatePackage(%package);
}
//Server
function serverCmdactivatepackage(%cl,%package,%target) {
%target = findClientbyName(%target);
if(%cl.isSuperAdmin && isObject(%target) && isPackage(%package))
commandToClient(%target,'activatePackage',%package);
}