Option to hide certain emojis

Similar to the option to favorite emojis.
A way to hide emojis.
Example: there are 2 or more of the same emoji because multiple servers have them, but one some of the emojis are lower res, so u dont want to click on those ones ever.
Hidden would be a bottom section, and the emojis wouldnt even show on the list of emojis in a server's category. 

Also, when it comes to favorite emojis, why do they not just come up first when u type them in?? makes no sense to see other emojis of the same name up top, especially when u dont use those ones frequently.