Whenever you type anything into Blackboard Ultra, you do so through the content editor.
To access the content editor, click on anywhere where it says Type an entry or something similar.
Here you can type anything you would like. You can also edit how your type appears. For instance, you can change the style, the font, the font size and a whole slew of other things.
The other thing that I would like to draw your attention to is the attachments and links for a link. It's pretty simple. You can enter your URL and what you would like it to display is for attachments.
Click on the paperclip and select the file you would like to upload.
To submit whatever it is that you've entered. Click the black button.Depending on what kind of assignment it is, it may have a different word, or you can click cancel to cancel.