Nadavr

Even though I still believe everything I wrote above is correct, feel free to delete my post if you wish. I won’t deny that I’m currently trying to understand this plugin (because one of our websites is already using it extensively and so I MUST learn how to use it), but that has nothing to do with my overall impression of the plugin.
The fact stands that it requires hard PHP coding, has no documentation and breaks down from time to time (other people in my company had to deal with it in the past. Now I’m stuck with it).

Thank you for the explanation. Can you please also give me an example of how to use a direct php code or which file should I edit to add the code?

You are right of course. My lack of knowledge as a fresh network admin is showing isn’t it (haha). Well, that takes care of it then. Thank you for being so considerate and explaining these things to me.

I’m sorry but I’m looking for something that will allow me to control the theme permissions, so when a new theme is added by a user it will automatically be invisible to the other users. The method you described is manual and will thus not suffice in my case. I would really appreciate it if there was a plugin or something I could change in the PHP that will make that possible.

Thank you for your fast reply Mika. I think you’re answer is on the right track!
This issue is important to me and I really appreciate your help. I tried disabling a theme like you said. It does seem to remove it from the themes list without damaging the WP website on which it is currently used. When I accessed Dash -> Network -> Sites I noticed all the websites in my network now have the theme I disabled listed with an empty tick box near it. Will ticking this tick box for a specific website mean it will have the theme I disabled available?

I tried doing what you asked. After I hit update the image lost its link and a nbsp; line was added before the div tag.

Just to be clear this is how it looked after I updated and moved to the text editor:
?
nbsp;
<div><img alt=”” src=”https://img.goodsmile.info/cgm/ecommerce/goodsmile/images/large/9ce7c9034ecc7b18703285ee3707502e.jpg&#8221; /></div>

Do note that the nbsp; had an “and” symbol before it in my text editor but for some reason this WP forum does not allow me to write it (it recognize it as html and does not include it in the allowed markup). Also, the image alt element is empty because I didn’t bother specifying one in the first place.

I did a few checks and it seems that if you choose a picture from the media uploader WP remembers the value input in the Link to Field of the media uploader. In essence that means that if you chose “Link To: None” in the media uploader WP will not allow you to add a link later via the post. It will reset the link to none each time you move from text view to visual view. That pretty much sums up the problem in a more informative way. When I did chose a link via the media uploader it sticked to the image and was not removed. Of course, adding a picture exclusively through the media uploader isn’t very convinient…

I do hope they fix all these problems. Thank you for telling me I’m not alone in this boat ??