Customizing the Designer View programmaticaly

In the same way as we can programmatically configure the Signing Ceremony via SDK (http://docs.esignlive.com/content/c_integrator_s_guide/sdk/k_customization/customizing_the_signing_cermony.htm) , we need to be able to customise the Designer View on a package by package basis. Currently this is possible only via support request - https://www.esignlive.com/blog/esignlive-how-to-customizing-the-designer-view/ - but this doesn't give enough flexibility when integrating, where we may be connecting through different Esignlive accounts, and each of them would have to be customised (hampering also their ability to submit requests via the standard web interface). Thanks, Alberto