To dynamically send to different receive objects, use the 'forward' object.

To dynamically receive from different send objects, use a 'receive' object without an argument. An inlet will be created which allows you to set the send object to receive from.

Thanks but that is not what I meant. I have 50 objects for example: send frequency1, send frequency2 et cetera. I have to create the corresponding receive frequency1, receive frequency2 objects. Doing that all by hand is tedious hence the question if I can somehow do it easier.

You could copy all the receive objects into an empty patcher, save it and open as text (maybe with a dedicated text editor). Then you could quickly find/replace-all.

you can do it easily by scripting: