I'm using lorem ipsum text generator (Effects -> Text -> Lorem ipsum...) so often, that I would like to have it available under F8 key (or any other one). I know that I have to modify /usr/share/inkscape/keys/default.xml or ~/.config/Inkscape/keys/default.xml file, but what should I type there? Where can I find names of actions performed by items from "Effects" menu?

from the default keys file:

<!-- You can also assign keys to individual effects. The action should be set to he
effect id from the .inx file, for example "org.ekips.filter.addnodes" for the Add
Nodes effect. -->

Thanks for pointing this out, I haven't noticed this information at the end of the file.