Answer:
The load import with the mentioned feature is limited to vertical loads (transfer in 2D structures). If support reactions in other directions are required, they must be transferred manually.
To facilitate the manual import, you can display "Smooth Distribution" for each line instead of the "Actual" support reactions (see the image). The following applies, of course: the finer the subdivision of the lines, the more precisely (more gradations) the result approximates the actual distribution.
