A-01:

First you need to connect the switches. You can do this by using the space there is in the center and eventually moving the blocks so that the gray blocks connect to two switches. With the extra room where the former magic wall was, your next step is to connect the star blocks and make the disappear. Since you have room, you can just gather them on the left side. Then with the extra room, you should be able to connect the entire bridge together. You can’t lose any length on this one as all the bridge pieces are just enough length-wise to span the water.

Here is the finish:

A-02:

This should be obvious that the first step is the connect the stars. If you don’t, there’s no way you can win. Once the stars are connected, its not that hard to get the bridge to piece together.

Halfway through just after I made the stars disappear:

Here is the finish:

A-03:

You can’t beat this level without the tele-porters so use them. Get the stars to disappear first so you have more room. Teleports can only move single blocks so you have to drag the single star over to the far teleport. You can also get half of a regular block to go into the teleport if its pointed the right way.

Right before I get rid of the stars:

Level end:

A-04:

Well, that should get you started. I will post more as I complete them.
I know a video would work better but I really can’t make a video and it’d take way longer than 10 minutes.