The options in .config work fine. THanks and sorry for the late review.

However, if ./bin/start-smoderp2d.py --config tests/config_files/quicktest_stream_rill.ini the output file tests/data/output/control_point/point003.csv is in stream as it should be and the header is like this:

==> tests/data/output/control_point/point003.csv <==
# Hydrograph at the point with coordinates: 1.3453 0.8065
# A pixel size is [m2]: 0.25
time[s];deltaTime[s];rainfall[m];waterlevel[m];vRunoff[m3];q[m3/s];vFromField[m3];vRestsInStream[m3]
3.0000e+01;3.0000e+01;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00

But, if ./bin/start-smoderp2d.py --config tests/config_files/quicktest_sheet_stream.ini the output file tests/data/output/control_point/point003.csv shows values like its not in a stream. And the header is:

==> tests/data/output/control_point/point003.csv <==
# Hydrograph at the point with coordinates: 1.3453 0.8065
# A pixel size is [m2]: 0.25
time[s];deltaTime[s];rainfall[m];waterLevel[m];sheetFlow[m3/s];sheetVRunoff[m3];sheetFlowVelocity[m/s];sheetVRest[m3];infiltration[m];surfaceRetetion[m];state;vInflow[m3];wLevelTotal[m];surfaceBil[m3];vToRill[m3];ratio;courant;courantRill;iter
3.0000e+01;3.0000e+01;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;0.0000e+00;1.0000e+00;1.9500e+00;1.9500e+00;0.0000e+00

But it should be like in the previous example since both quicktest_sheet_stream.ini and quickest_stream_rill.ini should have the stream in the point 003.

Just an update. The bug described above is also in master. Maybe this pull request can be merged to master since the options in hidden config work. ANd the bug described above can be solved separate branch(?).

@jerabekjak yes, please create new issue to describe this bug. It's seems to be unrelated to this PR.