Select variables that are already defined

The possibility to select the variables that are already defined on the Web Panel was added. In order to do this, just make right click over a container node (Table, Panel, Group Box, etc) and select Add -> 'ExistentVariable'. 

The GeneXus IDE shows a Web Panel with the Work With Plus Transaction pattern applied, its object tree expanding TableMain with a General Information panel containing attributes such as PersonId, PersonFirstName, PersonLastName, PersonFullName, and PersonNickName. The Web Form preview on the right shows a General Information section with ID, First Name, Last Name, and Full Name fields, and an Output log panel is docked below.