Diagnosis
You are either

• creating graphical elements by converting from existing non-graphical
elements (input/output fields, text fields).
By choosing Select block end, you have defined a rectangulararea where the elements are supposed to be converted to graphicalelements. However, the rectangular area already contains complete orpartial graphical elements.

• creating a radio button group by grouping together at least two radio
buttons.
The position of the selected radio button and the cursor determine theopposing corners of the rectangular area where the radio button groupis expected. This area contains complete or partial graphical elementswhich cannot be grouped together in a radio button group because theyare not radio buttons.

System Response
Unable to perform the desired operation.

Procedure
Define the rectangular area so that the elements to be converted orgrouped together are completely within the area and other elements arecompletely excluded.