How I can Create Dynamic URI orbeon?

Please, can you tell me the recomendation for created a dynamic URL on form (other form open in a new window):

1.- I shoud use buttons and how I can to configurate that?
2.- I shoud use explanatory text and how I can configurate that?

Many thanks.

For those finding this thread through a search, since this question was cross-posted on Stack Overflow, and a follow-up has already been posted there, please refer to that discussion, and if you'd like please comment as well as on Stack Overflow:

http://stackoverflow.com/questions/43834296/how-can-i-create-a-dynamic-url-to-open-a-new-form

Alex