query along gpx-track

[dontfindmyway]

Hi,

I want to create queries along a given gpx-track/line in JOSM. The only way I found out is to download data along a route and then to run a query on that. But this is a) time-consuming, and b)i.e. for long routes not very efficient. Anyway, there is a shortcut when doing the same with a bbox. But I do not want the information in the bbox, I only want the information along a route (e.g. drinking water at max. 20 m to the given track).

I am sure it is just a command I am missing. But cannot find out which one it is. I have imported the route as a layer in JOSM, and ultimately want to use this layer as the reference line.

The screenshots show how the track is displayed, and also what happens if I search for all elements of a certain nature. Now, I would like to combine those two.

Hope you understand my question and can help me
Kind regards
Philipp