Firstly, @Commands() won't work in XPages, even using session.evaluate()

 

However, we're looking to address both actions, opening a window in a new tab and closing the window, for XPiNC in 852. 

 

To open a new window in XPiNC, you will use the 'target' property, setting it to _blank.

 

To close, we're looking to support window.close()

 

hope this helps. 

p.