Can he make a portal from here to Felix's dimension that needs permission from both sides to work?

To create portals he needs to...

...it's weird to put into words, but basically he needs to fold a point of tridimensional space and shape it in a tunel like way through a fourth spatial dimension until it connects to another section of tridimensional space (in this case Felix's dimension).

Also he can sense "points" that represents the circunstances which the portal will open, close, lock and unlock. Scott can pick those circumstances as long they are related to taking care of things. He can set it up, so both sides of the portal require it to happen.

Weird and a little confusing, but he'll figure it out.

He starts trying to help the forest grow, creating natural barriers between the beasts and where the humans will live.

Fences made of vines and ivy, made of thorny bushes and thick trees, and a portal in the tangle.

He tries the portal.

The portal is created!

Well. Scott steps through the portal, and looks around.

...He wakes up.

Right, okay. 

He wishes he'd paid more attention to what Felix had been saying about all this, but he'd been more focused on keeping him from crying.

Maybe he should have taken notes.

Anyway, he is awaken now.

So he is.

Can he try to find a portal? Is that how this works?

Pocket dimensions are kind of confusing.

He could search for the portals he went through last night, Felix left a few in case people wanted to go through and from his pocket dimension.

So if he tries to take a portal like the one from his own pocket dimension, and put one inside his house, can he use that to let people into his?

If he can use dreamshaping to do something like that while awake it isn't very intuitive.

So he finds one of Felix's portals and goes through.

Now he is standing on Felix's topiary garden, he saw this area during the night and is even prettier during the day. Felix's house is pretty close, he can even make out the shape of something with large red-orange wings sitting on the roof, facing away.

That won't work.

"Felix?" he calls out softly.

Felix can't hear that.

He approaches the house.

"Felix!"

This time a bit louder.

Felix is startled, but then flies down and...

...forces a smile for Scott. "Good morning. Are you adjusting well to sleeping while dreamshaping?"

"I'm learning. Thanks for all your help so far."

"My pleasure. Do you have any questions?"

"What do dreamshapers do in your home? Are they specialists people go to for help? What did you do before you came here?"

"Oh, while pocket dimensions are publicly known, the fact that dreamshapers make them is a secret. I don't know why. The last batch of dreamshapers was created by a really evil bastard that was using them to get rich. Me and my twin," there is a brief pang of pain in his face, "helped put the bastard down and have been recently used the powers for various charity reasons. Fire doesn't consume or harm things here in my pocket dimension, so we set up a power plant that provides energy at extremely low cost while I also secretly conjure things to donate to anonymously to various charities. The current arrangement between dreamshapers was not to go public, at least not yet. Most are traumatized after being basically enslaved and so had issues before... they were picked among people that wouldn't be missed."

"I'm sorry. Dreamshapers in this world can be something good, from the beginning. We can make sure of it."