This capability is not yet a function of Qlik Cloud at the moment. It is intended to share a read only / interactive view of the app created with Qlik Sense Desktop. This may be something we will consider for the future as we continue to develop this offering.
There is a server component - license / fee based that does allow this capability. The Qlik Sense Server can be installed in your own infrastructure on premise or in a virtualized hosted environment. It has this capability as part of its offering. You can review this and more in these videos here if you are interested: