Hi Anke, You are right ... 
... my example.aia just works in portrait format. Need to learn how to build an app that be "smart enough" to deal with both landscape and portrait formats ...
Hi Anke. I will deal with the BLOCKS suggestions you gave me. Some new objects to me ... Looks interesting. With every tip I received, I realize that I have to learn MIT APP a lot ... Thanx anyway Anke !
Hi Carlos. Thanx for the tips. I´ve already used such technique (btn) in another app. The canvas technique was new to me. I´ve tested. Thanx.