Hello,
Thank you very much for the question!
As Emre mentioned, currently it is not yet possible to do so. Fortunately, I found that we already had a similar wish in our Wish List database (please refer to it as #8226). Hopefully we will be able to implement it in a future version of BIMx soon!
Thank you once again, and have a great day!
Best regards,
Minh
Minh Nguyen
Technical Support Engineer
GRAPHISOFT