Content creation

All,

I was wondering if I can use a  content type with custom data from a local json file or from a rest service?

For example: If I want to use the presentation content type and use content from a json file or an external rest service which could include content and quiz?

Json or yaml makes it easy and fast to create content and track revisions in git for example than having forced to use a UI on h5p or moodle or drupal. 

Me and my colleagues are trying to find a way of allowing user's to retry an activity (Quiz or drag and drop) once, and only once, if they get the answer incorrect, forcing them to move on if they get it wrong twice.

I have found a messy way to do this using 2 interactions and manipulating the "adaptivity" section, but this comes with many faults and issues that we just can not have, are there any ways in which we can quickly, tidily and reliably allow users to retry, but limit the number of retries?

I am a total newbie to H5P, but very excited to create some interactive presentations. 

Two questions:

1. Currently going throught the tutorial on course presentation. Step 4: Slide 1 indicates I should add keywords by pressing the following button:with the three horizontal lines. My problem is I don't see that button. I am using the online version of H5P.

2. Second question is if I don't use Wordpress, Moodle or Drupal, what are my other options to import content to an LMS. I'd like to know what my options are.

Regards,

Susan