Hi,

You have to use two separate trigger effects:

Army Create (or Army Create Near Point)
Choose an army from your Army List or click "Make Army" to create one on the fly.

Depending on what Army you have selected, specify the number and protounit type(s). Ignore Heading if you don't care which direction the units are facing when they appear.

Then use Army Move (or Army Move to Point or Army Move to Unit)

Choose the army you created or designated for the Army Create trigger effect. Select a point on the map to tell the army where to go. Attack move OFF if you want the army to proceed directly to the destination without stopping for any reason; Attack move ON if you want army units to attack enemy units and buildings in its path.

When using the Army editor, you can create an army out of existing units on the editor map, or you can create a "ghost army" which is an empty set. You write a trigger later to fill the empty army set, making the "ghost army" into a real army. In this case, you want the units to appear on the map after the game has started, so make a ghost Army and later use Army Create to assign new units to it: some Landsknechts and a wagon.

It may also be easier to avoid using armies:

First use "Unit Create" to create each unit in the group you want.

Then use "Move from Area" right after and they will move together towards the place you selected.

Be careful when you do this, you may want to have triggers running to make sure the units continue to move, especially if you select "Attack-Move" to true