Added 3 New Commands -:

flyspeed:
aliases: fs
description: Change Your Flying Speed
usage: /flyspeed <1-10>
permission: all.fs

fly:
description: Allows Target Player To Fly
usage: /fly <player>
permission: all.fly

lightning:
aliases: ln
usage: /lightning <player>
description: Summons Lightning On Target Player
permission: all.ln

Removed Console Info Sender.
Next Update Would Most Probably Include New Commands. And you will be able to use /flyspeed on other players as well.

All Commands Have Been Tested For The Version 1.16.4. But I think they will work on 1.16.5 as well.