A computer-implemented method for editing one or more properties of one or more model elements in a block diagram of a technical computing environment. The model elements include blocks and variables in blocks, wherein one or more properties are assigned to each model element. The technical computing environment has a model editor, a data definition tool and a code generator. A processor of a host computer opens a block diagram in the model editor, displays a list of model elements present in the block diagram, receives a selection of one or more model elements, highlights the selected model elements, receives an edit command to set a new value for a chosen property of the selected model elements, and sets the chosen property to the new value. A non-transitory computer readable medium and a computer system is also provided.