No worries Agondonter, glad you found it helpfull.
In 32 bit floating point there is no clipping while you are working in a clean daw that doesn't have any analog simulations going on. Cubase is such a DAW. The red channel flashing is just an indicator that you have peaks over 0db digital scale, and you have to worry about that only when bouncing/exporting in order to avoid nasty digital clipping. That is very easily done, you can even lower you stereo master fader in the end until the clipping is gone.
As far as the recomended levels, you got very good advices in this thread, many plugins are balanced to work from -12db to -16db, that would be great if you could maintain that level all the way through. But to make things easier with no consequences, you can only think about levels when:
-you use your plugins: you can adjust input gain of that plugin or if the plugin doesnt have the input control, you can insert a separate gain plugin before it, or use any other level control before the plugin.
-when you bounce/export to audio file, nothing should go over 0db digital scale (which is the scale on the cubase faders). Again, for this you can use plugins on the master channel, either level controls in your existing plugins (eq, comps, limiters, etc...) or a separate clean gain plugin.
Also, you got tons of great info regarding the final track levels as well as many ways how to get to a desired one.
Here is a good pdf on digital audio, it's a very easy read:
https://redirect.viglink.com/?format=go&jsonp=vglnk_155499789167515&key=57ed2afae0b472fc7ec991a58f1b72c9&libId=jucsk43p0102uz1c000MAcb3whibl&loc=https%3A%2F%2Fwww.logicprohelp.com%2Fforum%2Fviewtopic.php%3Ft%3D65875&v=1&out=http%3A%2F%2Fwww.popmusic.dk%2Fdownload%2Fpdf%2Flevels-in-digital-audio.pdf&ref=https%3A%2F%2Fwww.google.com%2F&title=Can%20my%20low%20fader%20position%20degrade%20sound%20quality%20%3F%20-%20Logic%20Pro%20Help&txt=http%3A%2F%2Fwww.popmusic.dk%2Fdownload%2Fpdf%2Flev%20...%20-audio.pdf (https://redirect.viglink.com/?format=go&jsonp=vglnk_155499789167515&key=57ed2afae0b472fc7ec991a58f1b72c9&libId=jucsk43p0102uz1c000MAcb3whibl&loc=https://www.logicprohelp.com/forum/viewtopic.php?t=65875&v=1&out=https://www.popmusic.dk/download/pdf/levels-in-digital-audio.pdf&ref=https://www.google.com/&title=Can my low fader position degrade sound quality ? - Logic Pro Help&txt=https://www.popmusic.dk/download/pdf/lev ... -audio.pdf)
Milos
Thank you Milos! The pdf is indeed very easy to understand and informative!
Just for clarification, no matter what genre I am writing in the final track should leave a headroom of 0.3 decibels, right?
Cheers