It would be good if there was a place where people could exchange indicators. In fact it could even be done in a way where people could sell their indicators for a small price (1$ ?). A small percentage of this could be used to support the project while it would open up a whole market.
Sorry. Currently, JStock development does not have such plan yet. Perhaps you may launch another project to realize this idea. We development will be very happy to provide full technical support on product development :)