Please check if the feature has not already been requested.
If not, please describe it

passive painel to rack
Passive painel like "pass cables"

Show group planning on Group View tab
Show group planning in the group view tab like "Personal View" tab, "Your Planning" box, because when we have tasks to do assigned with groups we can't see it on the home screen.

In the tasks appear all the technicians and all the groups in the combo box assign a task, this is a bug?
I noticed a strange behavior in assigning tasks that appears to be a bug.
In the combo box to select user or group that will perform the task appear all the technicians. And on the next button to check the availability is visible only the users that assign the ticket or users no the group that is assigned (this seems to be the correct one)
This bug been reported? Does any new version to fix it? I'm here with GLPI 9.1.4.

Permissions to view only my assets( or objects) or of my group.
There could be a possibility of limiting the Read and/or Change of assets only to "Group in charge of the hardware" or "Technician in charge of the hardware".
Because often the same type of asset (such as computers / servers) can be managed by different teams, and the solution of creating different entities is bad.
The same problem occurs with other objects such as licenses, contracts, documents, etc.

Allow Watchers to add follow up to observed tickets
Watchers should be able to add follow ups to tickets

Task color changes when it is done
It would be useful to change the color depends on the status of the task
information : orange
Done : green
To be done : yellow

Plugin reservation

Handle of "other" Network Components (like TVs, IP Cameras, Network speaker)
Whats the best Way to handle/inventory all these network components?
They will be detected by FusionInventory but no asset category seems to matching.
Also FI didn't support generic objects yet, so there is now way to move them from "unmanaged devices" to a self created asset type.
Thanks a lot for all ideas and suggestions

Progressive Web App GLPI
Migrate the current GLPI application to a Progressive Web App, which allows you to run GLPI natively on different platforms (Web, iOS, Android, etc). And to take advantage of local storage, run offline, push notifications, performance, access to hardware, access to the homescreen of the device, among others.
http://blog.ionic.io/what-is-a-progressive-web-app/
https://codigofacilito.com/articulos/progressive-apps

Add new tab to ticket for related tickets
Add new tab on ticket for related tickets as well as works for changes and problems. By adding a button / link to create new related ticket.
Customer support service by UserEcho