The preferred way to set up a hub would be to break up the text into several smaller sections or "capsules". A capsule is like an empty box where you can enter text if you choose a text capsule, or a photo if you choose a photo capsule, or a link if you choose a link capsule.
Adding a new text capsule:
While you are in the edit mode of a hub, if you want to break up a large block of text, hover to the left of your text that already exists. A floating image will appear that says "insert text" (or insert photo, or link, or other type of data).
Choose "insert text" and wait a couple of seconds. A new capsule will pop in usually just above where you were hovering.
Go into the edit on the old capsule and copy some of the text you want to move.
Then go into the new capsule and paste the text you copied from the old capsule into the new one. Delete any duplicate text out of the original capsule.
Or you can create new text simply by typing into the new capsule you've added by going into "edit" (written at the top of the capsule) on the new capsule. Type your text, then press save (at the top of the capsule).
The reason you want to do this is to allow advertising to appear between blocks of text, or perhaps to add a photo in between blocks of text.
Adding a photo to your hub:
If you want to add a photo, do the same thing - hover to the left of the existing text, then use "insert photo", wait a few secs and an empty photo capsule will appear. Add your photo while in edit mode of the empty capsule similar to adding text above. To move the photo to the right in your text, use the right arrow at the top of the photo capsule after you save the photo.
I hope this helps you understand. I can't view your hubs in edit mode. Only you can do that.