Drum Leveler includes several presets for VST2 (fxb/fxp), Audio Unit (aupreset) & Pro Tools AAX/RTAS (tfx).
Some hosts does not support fxb preset format.
We are aware of the situation and hope to include support in a future release.
Currently you may download the presets in .vstpreset format from here.
In order to add presets unzip the file to:
My Documents/VST3 Presets/Sound Radix/
Windows 7 and above
Users/*Your Username*/Documents/VST3 Presets/Sound Radix/
Mac OS X