Main toolbar > Curve Editor (Open) > Global Tracks > Master Block > Right-click Master Block track. > Properties > Master
Block Parameters dialog > Click Add. > Choose tracks in Track View Pick dialog > Click OK. > Block Parameters dialog
Graph Editors > Track View - Curve Editor > Global Tracks > Master Block > Right-click Master Block track. > Properties >
Master Block Parameters dialog > Click Add. > Choose tracks in Track View Pick dialog. > Click OK. > Block Parameters dialog
After clicking Add in the Master Block Parameter dialog and selecting tracks in the Track View Pick dialog to create a Block, clicking OK in the Track View Pick dialog displays the Block Parameters dialog.