I think this was possible via GLM 3. After I spoke to Genelec Reps, I understood, even though it allowed to set Bass Management Filter it worked only in combination with Genelec subs. Else it produced all frequencies. In GLM 4, it is different. One cannot even set it.
Please stop the nonsense in this thread.
No matter if it's GLM3 or GLM4, you can set highpass filters to your speakers in GLM settings, and they work. It makes no difference if there are subs or not. I suggest reading the manual more closely and trying correct knobs.