You should test whether your modifications do not break anything.
See https://www.fieldtriptoolbox.org/development/testing/

When outside the DCCN, please consider testing: test_tutorial_beamformingextended, test_bug3078, test_tutorial_beamformer20120321, test_pull1377, test_pull1377b, test_tutorial_connectivity3, test_tutorial_meguk2015, test_bug1976, test_bug3029, test_bug3124, test_beamformer_sam, test_tutorial_beamformer20131122, inspect_ft_sourcemovie, test_shared_virtual_channels, test_bug1599, test_tutorial_coherence, test_bug2664, test_issue1198, test_tutorial_beamformingextended20131122, test_tutorial_beamformer, test_bug1563, test_ft_sourceanalysis

When inside the DCCN, please also consider testing: test_bug1298, test_bug2005, test_pull1456, test_bug1599, test_bug1746, test_bug2959, test_prepare_freq_matrices, test_pull1663, test_pull1377, test_beamformer_whitening, test_pull1377b, test_bug1563, test_tutorial_meguk2015, test_bug2399, test_bug2834, test_bug1049, test_bug3029

Suggested tests outside the DCCN use public data or do not use data.
Suggested tests inside the DCCN use private data.

You should test whether your modifications do not break anything.
See https://www.fieldtriptoolbox.org/development/testing/

When outside the DCCN, please consider testing: test_tutorial_connectivity3, test_tutorial_meguk2015, test_ft_sourceanalysis, test_pull1377, test_tutorial_beamformer, test_tutorial_beamformingextended, test_issue1198, test_tutorial_beamformer20120321, test_bug1563, test_bug3029, test_bug1976, test_tutorial_beamformer20131122, test_shared_virtual_channels, test_pull1377b, test_tutorial_coherence, test_beamformer_sam, test_bug1599, test_tutorial_beamformingextended20131122, test_bug3078, inspect_ft_sourcemovie, test_bug2664, test_bug3124

When inside the DCCN, please also consider testing: test_pull1377b, test_bug1599, test_bug2399, test_bug1746, test_bug1563, test_bug2834, test_bug2005, test_tutorial_meguk2015, test_pull1456, test_beamformer_whitening, test_pull1663, test_pull1377, test_bug1049, test_prepare_freq_matrices, test_bug1298, test_bug3029, test_bug2959

Suggested tests outside the DCCN use public data or do not use data.
Suggested tests inside the DCCN use private data.

I think that this should do it, I checked the majority of the failing test functions (apart from the ones that only crashed after > 2 minutes.

Seems to have worked, this morning the dashboard did not report any errors. Thanks!