Motionbuilder with Python # Reflecting to GUI When any object selected and "Get selected" button pressed , "Get selected" button label will be changed to the selected object name. # Reflecting from GUI When "Select" button pressed, it tries to find an object by the above button name. Sample code is here . (Version tested: 2018) Please see this page to relocate the sample code in i3d script folder. #Prerequisites : i3dmb.pyc #Command: import i3dmb,i3dmb_samples as iSa;iSa.sampleGUI().create();