Minion Command Help, Please?

Im trying to make this hero that can raise skeletons and has command abilites.

Disengage- Minions bascially are around you or beside you depending on how many you have and attack anything near in a certain radius.

Engage- When you click it you will get a AOE target thing and when you click it the minions run to the place and attack anything around that area in the area until you click disengage again.

Raise units - make a spell based off the Raise Skeleton / Summon Spirit Wolves / Summon Treants spells depending on how you want the units to be created.

Disengage - Have a periodic trigger that calls the units back to you when they are out of a <Variable> range from the caster. This makes the units follow you around the map. Then have a button that manually recalls units near you. Either ways, you can make a dummy spell based off channel for this.

Engage - Use channel. You might want to create a Boolean var called maybe IsEngaged which becomes true when you cast this spell, and have your periodic recall trigger check this condition when ever it runs so that in this case, you can manually recall the units to your side..

thanks...

uh i guess ill forget it then, i dont really know how to do that all unless u could kinda show me in a simpler way or something, im new to triggering, but im trying to learn.