Row selection does not exist directly on the right-hand side. Only the tree table view on the left supports this. However, as you pointed out, you can implement either a custom system layer or use the RowLayer with a pluggable renderer. Currently there are no other options. The custom layer would need to check the selection model of the tree table view to figure out whether a row is selected. The Swing version of FlexGanttFX does provide support for this feature, however, by far the most users did not want to highlight the row selection on the right-hand side, so I figured I should not add it to the framework.