With Display style Illustration > Shadow it is possible to see the shadow that has been set in the Solar settings in the Lightmanager. But the shadow is by default very black, you can not see objects which are in shade. I found a solution for this problem: check https://bentleysystems.service-now.com/community?id=community_question&sys_id=465f97a3873e4ad05bea87380cbb35b8
I request for a Solar Shadow Time slider in combination with a overall brightness slider (so I dont have to increase Ambientlighting and play with the brightness values)