I am not aware of a way to do that at this time.  

no joy lol thanks dave

maybe tomorrow you can tell me what kind of input you need 

If you run the install.php file of the plugin, can't you enter a form there? I have not tried it, but it should work. You can also enter a variable that deactivates the plugin until the administrator completes the necessary data

The problem is that without config values or some other way to store the data and a admin function as part of the form, you cant add a form.  Smarty handles all the forms and its partly done between the html page and the php page    There is no route yet during install. 

Of course i could be wrong and someone could force a form there but im not sure what info he needs, could be another way to get it.

If you have a route and activated, the installation of the plugin and is activated ... I still have not tried it but a form should work, or a "prompt" in JavaScript. Tomorrow I will test it out of curiosity, which is too late in my country now. What I just didn't understand is that questions may be necessary before installing a plugin that cannot be asked once installed