The ICA client has some special keyboard shortcuts, for sending for example AltTab to the server rather than locally. We should probably use the same shortcuts, so that users that are changing from Citrix to ThinLinc doesn't need to re-learn.
It should be possible to re-map keyboard combinations, for example to make Ctrl-Num+ to mean Alt-Tab on server.
This bug overlaps with bug 4660 in that they are both trying to solve the issue of conflicts of local and remote key bindings (e.g. Alt+Tab). I'm not closing this as a duplicate as bug 4660 is also very heavily tilted towards a specific solution so neither bug is a good general bug for the actual practical problem.