if you mean you want to add text to your hub but you want non-text in between, click on edit then go to the right hand side of the page. There are a bunch of capsule options like text, poll, or quiz. This alliws you to create a new capsule. If you mnean you starte a hub, hasd to leave and have come back to it and wawnt to add more text to what capsules are already there, click on your hub. click on edit. This will bring up a box to click with the word edit in it on each of the capsules. Click on that box to the capsule you want and you can keep typing.