Features:

• Added the ability to run multiple commands from one click
• Added safe command launch as operator or console.
• Added usage limit (up to 255 uses if 0 then infinite)
• Added timeout (up to 255 seconds if 0 then infinite)
• Added retention for active clickable messages at the bottom of the chat
• Added message remove when use count or time reaches 0
• Each command may have different use count and timeout (except multiple commands)
• Commands with same timeout and usage count grouped by one token
• ///// command removes token

Default time: infinity
Default usage count: 1

To set usage count and time command should starts with §[0-F]§[0-F]§[0-F]§[0-F] (2 hex bytes first - use count, second - timeout in seconds (if 0 then infinite))

Run multiple commands <command>&&&<command>&&&<command> ...
Run as op: §<command>
Run as console: §§<command>
Run as console placeholders: §playername §playeruuid

Example:
Another example:
Commands/permissions/config: Not exsist

Please post feature requests and bugfix reqests in the discussion page.