Content creation

Hi there, 

I had created some slides is Photoshop for my course presentation at (900 x 506 px) about three weeks ago.

Today I modified my slides (basic color changes) in Ps and went to upload them as the "background" for the course presentation, which now appears to have a different aspect ratio? Perhaps I am missing some information, could someone please advise?

What size do you reccomend makng slides?

Thanks! 

Hi, 

I'm looking to add a plugin to the CKeditor for fill in the blank questions. I've followed these instructions: https://h5p.org/adding-text-editor-buttons but I'm not sure how to execute the final step. I'll try to explain every step I've taken so far, in case anyone else comes across this.

1. Created a file called h5p-mods.php with the following code:

I cannot find the New Question button in Multiple Choice. There is an Add Option and Add Range button, but no New Question button, so right now, my multiple choice quiz has one question.