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If not, please describe it

Please! An important suggestion to add the status
Please add the status of "approval" for ticket that appears automatically at the time of the request for validation, as new and processing (assigned) and Solved, etc.Please, very need!

Model the uninterruptible power supply (UPS) and what they are powering
I think it would be useful to model the fact a computer or network equipment (and maybe other asset types) is powered by a given UPS (helps for power outages).
I'm not asking to create new assets types for UPS (I am using peripheral for that) but being able to link a single peripheral to multiple computer (which is not possible at the moment, it can only be linked to one computer) and/or to multiple network equipments (it's currently not possible to link peripherals to anything other than a computer).

tasks chain
When a ticket has several tasks to do, you can add the ability to link between them in order to see the tracking of the resolution ?

Timezone Plugin integration
Plain simple. Having users in different timezones is not easy without this plugin.
Let's add it to the core.
https://github.com/tomolimo/timezones
By the way thanks Tomolino.

Highlight ticket changes in email notification
Assuming a reader easily remembers the history of a ticket, they may quickly find what changed if the chanes are highlighted (using italic, bold or a color, or something else)

History of sent mails
It was important that the ticket history, or in a new tab (always associated with the ticket ) , had the emails that were sent to each of the intervening (on add Followup, Task and others).

Consumables
Hello good day
Today in GLPI the Consumables are delivered (Dar) to Users and in my case and I believe for others too, use the Consumable Register for Mouse, Keyboards and sources that is considered Consumable.
Well, it would be possible that these Consumables could connect to the computer? Why that! The user is rotating and it does not take one home keyboard, and this keyboard, mouse, etc. belongs to the computer that it was connected.
Or Consumable is not for that purpose?
Thank you and congratulations for the project.
Forgive for this English so bad.

Possibility to sort tickets by fields on "Tickets" tab
It will be nice to have possibility to sort tickets by fields on "Tickets" tab for assets elements or users. See attachment :

Auto - KB Proposal related to the category and type of ticket
To exploit the knowledge base at best when processing a ticket, depending on its type and category , it will be a good KB list is proposed to the technician to solve the problem without going to perform research itself in the knowledge base.
If any of KB self- proposed resolution allows the ticket, that acquires a point scoring KB making it more relevant. This KB will be offered in the first position the next time a ticket of the same qualification will be open.
This feature will :
-> To save time technicians -> From more easily create KB if none is proposed in qualifying ticket -> Prioritize the most important KB
Customer support service by UserEcho