Unfortunately, no. I'll think of something, but I believe the key would be to add a cooldown to the Summon ability itself, and that involves fully customizing the plugin, since the cooldown would need to be adjustable for each game.
ahhh i was hoping it wouldn't be too difficult :(.Yeah i was thinking something along that line as well. Like either using it would put all the other ones on a global CD or something. And it be like summoner specific.(just trying to give helpful idea hopefully)