SC2Mapster

I'm using Order Targeting Point.

Instead of click on "attack" you have to click on the (, yeah this is really dumb!

For the location, it's just a point you set in the terrain

You can create a simple pathing using order queue like this:

Unit - Create 10 Zergling for player 1 at Start Location 001 using default facing (No Options)
Unit - Order all units in (Last created units) to ( Attack targeting Start Location 002) (Replace Existing Orders)
Unit - Order all units in (Last created units) to ( Attack targeting Start Location 003) (After Existing Orders)
Unit - Order all units in (Last created units) to ( Attack targeting Start Location 004) (After Existing Orders)

This way you don't have to create too much triggers and regions.

Also, instead of uploading your screenshots on random sites, you can just attach your screenshot on your post and it'll automatically generate a thumbnail + big picture.