the way to do:
repo init -u git://github.com/minimal-manifest-twrp/platform_manifest_twrp_omni.git -b twrp-7.1
repo sync -c
git clone https://github.com/seluce/android_twrp_device device/CUBOT/NOTE_PLUS -b note-plus
. build/envsetup.sh
lunch omni_NOTE_PLUS-eng
mka recoveryimage
- full stable recovery twrp image (3.18.35)
Kernel patching was done following the tutorial from SachinBorkar by olt78 (Android-Hilfe.de) https://forum.hovatek.com/thread-27132.html Thanks a lot for your fantastic guide!