Yes but this will show me all folders which I don't want. I know that I can simply uncheck folder to unscan but I want something like where you can view two seperate storages, like internal memory and SD card. As I already mentioned, on sdcard/music I have untagged songs in mp3/wav/flac/aac... and on internal memory I have tagged songs. I listen to songs on both storages but I want to have my library with tagged songs to be only showed.
You can install UAPP and see that you have option to play your library from whatever storage, but if you select only internal memory with one or few folders with music files, you have option to see music also from SD card. I don't know if this can be done in Poweramp, but folder hierarchy is close to this, only scaling is problem.