Q: Are there any ways of export / import of an entire state of applications' launch menu (Kickoff Application Launcher), including all the menu items and their icons, all the submenus and so on?

I mean:

1. a way to save all the items mentioned above (i.e., to make export operation) somewhere as (one or more) files / folders;
2. a way (e.g., just after OS reinstallation) to perform an import operation, so that all the menu goes to the same state, which the menu had just before corresponding export operation.

For some system settings KUbuntu 12.04+ such possibility is already implemented (e.g., for keyboard shortcuts). Does anything similar exist for applications' launch menu?

1. Does the system contain any tool to perform such operations?
2. Otherwise, are there any external applications, which can perform such operations? Do such applications exist at all?
3. Otherwise, is it possible to manually perform such operations of export / import, e.g., via copying of any files and/or folders and/or via editing any configuration files? If is it possible, how to do it?

At this time no tool exists to perform such a task, which is actually quite complicated (as the system where you are performing the import on may not have the same set of applications installed, or the entries may now be provided by files under different names).

While no application exists that I am aware of, if you copy ~/.local/share/applications/ from one machine to the other, it should also bring along file association customisations, etc. as well.

Please make sure you perform such a step outside of KDE on both systems, and make sure to run "kbuildsycoca4 --noincremental" on the machine receiving the files to ensure everything is consistent.