PUT to POST via reverse proxy

I have setup the openremote and am testing it.
I am able to send data to the server using HTTP PUT from a wifi module.

But now I want to SEND multiple attribute data data points in bulk from another sensor, using a simcom sim7600 modem.
But it turns out that modem does not support HTTP PUT.?!?!

So my question.
Is it possible to setup the reverse proxy running in one of the docker containers so that it receive HTTP PUT and forward them as HTTP POST?

ok I solved this using HAproxy rules, so all good.