[AlexP]

Is there any way to use hdr map and sun (only sun without sky) together?
Is it possible somehow directly from plugin setup or it is necessary to make mapped sphere hidden to gi to pass sun?

[JDHill]

Is there any way to use hdr map and sun (only sun without sky) together?

For illumination, no -- you can either use an HDR, or physical sky & sun. You can set the physical sky intensity to zero, but then you will only have the sun for illumination; not too useful, unless you are trying to render a spaceship.

[AlexP]

Any plans for that in future?

[JDHill]

I have no idea -- you'd probably want to ask about that in the regular Maxwell forum, since it's not plugin-specific.