General discussion

hi, and sorry for my bad English!

I’m a videomaker, and I’m interested to enrich my videos with interactive content.

I’d like to ask you some information:

• In a interactive video (H5P) playing on webpage, is it possible, with a link button, to play another video (video2) on the same windows on which video1 is playing, and at the end of the video 2 to return automatically at primary video and go on…?

• Is the icon of link button ( and another icons) customizable, with alpha channel too?

How can I add questions in H5P where the user has to listen to an audio file then answer multiple choice or gap fill, based on what they heard? This is the feature I need the most as I have an English language learning website. 

When I upload the H5P content that appears below.

Fatal error: Class 'ZipArchive' not found in C:\AppServ\www\wordpress\wp-content\plugins\h5p\h5p-php-library\h5p.classes.php on line 629

Ps. I use WordPress 4.1 and appserv2.5.10