The bulk close actions: closeAll closes every closeable tab in the tab, closeRight the
closeable tabs to its right (tabset tabs only), and closeOthers every closeable tab but
itself. They are not part of the standard menu (see ContextMenuBuilder.addStandard),
which keeps a single close item; add them explicitly to build a menu with them. They are only
enabled when the tab has siblings (there is nothing else to close in a single-tab tabset).
The bulk close actions:
closeAllcloses every closeable tab in the tab,closeRightthe closeable tabs to its right (tabset tabs only), andcloseOthersevery closeable tab but itself. They are not part of the standard menu (see ContextMenuBuilder.addStandard), which keeps a singlecloseitem; add them explicitly to build a menu with them. They are only enabled when the tab has siblings (there is nothing else to close in a single-tab tabset).