Latest OOS Oreo beta is unstable. Some bugs present on system level.

!!!TESTED ONLY ON Oxygen OS 4+!!!

Application allows to edit quick tiles count without root
Switches to monochrome mode from application or QS tile
Enable Call recorder in stock Phone app

Shortcuts for hidden Oxygen OS settings (doze/auto-launch)

***ROOT***
Switches calibration of display (DCI-P3 present)
Switches mobile data from application or QS tile (experimental)
Switches Channel Bonding Mode 2.4GHz (experimental)
Switches color for Quick Settings tiles
From version jOnePlus Tools [adb/root] 3.3.2:
Added Polish translation
Fix Chanel bonding for Oreo (tested on OP 3/3t)
Fix restore Call recording (again :D)
Internal fixes
All versions