This is not a valid embed at this time so you would need a customization to do so. You're more than welcome to post in our Feature Suggestion forum to suggest adding this though.
I would suggest using the "code" toolbar for posting items like this.
Quote, however, is part of the rich text process so while it won't do this permanently like for syntax highlighting, you can use the font color toolbar to change color.
I'm afraid, there is no template feature as a part of Pages. They are each separate. Please feel free to suggest this in our Feature Suggestion forum for further evaluation, however.
I copied both of those items and did not have any issues with them embedding. Just be careful of the first as that is the direct link to the image, which can break for a multitude of reasons. The second post which is a link to the Gallery image page is what they will want to embed.
Just ensure that the users do not click the "Display as a link instead" button just below the editor as that will display it as a link rather than the embed in my screenshot here:
Please post any suggestions in our official Feature Suggestion forum.
You can allow moderators/administrators to see who is posting so any moderation on these items would remain the same in that regard.
Sorry, we would need direct access to look at what we want here. We would not be able to go back/forth like you are suggesting.
I would suggest doing a few things right:
Remove any custom redirect/rewrites on your server.
Upload a fresh set of files from the Client Area.
Have you modified any files here? Do you have any custom redirects/rewrites here that would cause something here on the refresh? Could you please add SFTP/FTP to the access details in the Client Area?
Could you please clarify how the last post was added to the topic? Looks like the index for the listing hasn't updated fully as it is still in the location second to last post:
Thank you, I was able to login. Unfortunately though, once I changed my theme to an unmodified theme, I am not seeing this issue so this appears to be an issue with your custom theme.
I see the updated credentials now. Please ensure 2 Factor Authentication is disabled for the account. There may be multiple technicians which require access to assist you so 2FA is not possible.
Please ensure that all login handlers in ACP -> System -> Login & Registration -> Methods, are using the same setting for Email Address Or Display Name.
I'm afraid, these credentials are not valid.
You have various applications which are out of date and not running PHP 8 compatible code so you will need to uninstall or renew our software for Blogs, Gallery, and Commerce.