In the background that you're going to be spawning actors (or you could place a large, invisible actor over the entire area of the level you wish to spawn actors, and place the following rule in either one of them:
(You can find game.mouseposition X and Y by going to devices, mouse, position---> x,y)
I personally like using an invisible actor over the background to place the rule in. You can change it's height and width, if you don't want actors spawning in particular areas
Comments
When touch is pressed:
Spawn actor: (Whatever actor it is)
Position: game.mousepositionX Position: game.mousepositionY
(You can find game.mouseposition X and Y by going to devices, mouse, position---> x,y)
I personally like using an invisible actor over the background to place the rule in. You can change it's height and width, if you don't want actors spawning in particular areas
Hope this helps!