Brightness and color dialog not spawning separate sections for multiple sources

[lollopus]

I came across this issue while using BDV from within BigStitcher. I may be missing something, but I just can't obtain a behavior of the Brightness and Color dialog box as described in the online documentation at https://imagej.net/BigDataViewer

I'm working with a simple set of overlapping tiles (one timepoint and channel). When I wish to adjust individually a tile's brighness, I open the aforementioned dialog and deselect the corresponding source, expecting that the dialog will spawn a separate control section. This behavior is described in the documentation as follows:

If you uncheck one of the sources, it will move to its own new min-max-group. Now you can adjust the values for each source individually. The sliders of new group are initialized as a copy of the old group.

However, this does not occur. In fact, I never managed to obtain more than one control section in that dialog.

Using Fiji/ImageJ 1.53b, Java 1.8.0_202 and the latest plugins on Macos Mojave.

[lollopus]

I reposted this issue in bigdataviewer-core