We are using since a long time the plugin named "Redmine Plugin: Wiki Lists".
This was implemented by Mr. Tomohisa Kusukawa an japanese developper.
Unfortunately the japanese developer do not support it any more.
This is the WEB-side of free-ware-implementation by Mr. Tomohisa Kusukawa an japanese developper:
https://www.r-labs.org/projects/wiki_lists/wiki/Wiki_Lists_en

• Incert ticket-lists within description of a certain ticket as a markup-call to the plugin.
• Incert ticket-lists within a certain wiki-dokumentation as a markup-call to the plugin.
• Incert ticket-description within description of a certain ticket as a markup-call to the plugin.
• Incert ticket-description within a certain wiki-dokumentation as a markup-call to the plugin.
• Incert ticket-field-values within description of a certain ticket as a markup-call to the plugin.
• Incert ticket-field-values within a certain wiki-dokumentation as a markup-call to the plugin.
• and a lot more

So now there raises up the question, if you would do overtake this project as a new plugin supported by RedmineUp?
We are looking forward very interested about a new stable version of this plugin.
We would purchase of course several licences of this plugin, if you would deliver it!!

In hope you will take over this plugin to get a stable new version with some small extentions we will be very glad to get a new version of it.