The new added features of 701Server and Client to be able to save parameter setting on controller to PC and to write it back to controller from PC.
This features will be handy for back-up purpose if you accidentally factory reset the controller and lost all of the parameter setting, you can still revive it without redo the setting.
Or else, you can create one default parameter setting for one controller and save it(copy), then write it (paste) to other controllers with the same setting. That way, you do not need to do the same process for many controllers with same setting. Note: you need to change the node ID and door number when copying parameter setting as both node ID and door number could not be the same between one another.