good layour you make a test automatic

Looks good. The excursion funnel (AKA Tractor Beam) at the beginning is a little wonky. Overall a good test chamber.

Also, you automatically gain the blue portal gun when you use orange auto-portals.
2 auto portals are always linked to each other, but you need to activate them.

Best thing to do would be connecting a trigger once trigger block to these two portals, and place the block so that the player goes through it right when he enters the chamber.

There's a guide in the steam community for Portal 2 that contains all kinds of add-ons.
What is your level? Beginner? Novice? Advanced? etc.

You can also search for stuff in the Portal 2 mapping community that contain downloaded for things related to BEE2.

May I ask, what mod allows you to replace the portal gun? just curious

For someone who's using BEEmod for a few days already, it's an amazing tool.
I downloaded two add ons that allow you to replace the portal gun. One puts a paint gun instead and the other puts a gravity gun. There's also the ability to use crushers, reflection gel, auto portals, and so much more.

Trigger blocks are my favorite though.

Wow, Great Job on this, it is amazing, the things that you can do with Beemod, I am still learning more about BeeMod, but this is a great job ;-)