SAP BTP transport only one HTML5 App

Hello,

When importing an HTML5 application from file in SAP BTP Neo Cockpit I have the error:

Application or subscription with name (app name) already exists. Names must be unique across HTML5 applications and HTML5 subscriptions

Using Transport Manager forces me to transport the whole Content package ( HTML5 apps, themes, roles,

site content ), but I need to transport only one app.

How can I do that?.

Thanks,

Javier