Hypixel server - Tab to complete usernames for additional commands

[yourmotheriskoi]

https://github.com/Sk1erLLC/Hypixel-Autocomplete-Mod

While playing on legacy forge I can use this mod to allow myself to use tab to complete usernames for all players within my lobby. On Minecraft 1.8.9 the tab is only able to complete usernames for /report commands and /wdr (or /watchdogreport). Anything else requiring usernames must be manually keyed in. I think it would be lovely to be able to use tabs to help complete usernames for /trade, /party, /friend and much more.