Today’s good question comes from Doug. He asked if it is possible to display the parameter values as you drag the cursor between predefined sizes (tick marks) on a dynamic block.
What a great suggestion… and it sure seems familiar! You might expect to find such a control in the block properties. However, this is really a function of Dynamic Input. Dynamic Input controls the information displayed at the cursor. You can turn it on with the DYN toggle on the status bar and if you right-click on the DYN toggle, you can access the Dynamic Input tab in the Drafting Settings dialog box.
One of the options on the Dynamic Input tab is for Dimension Input. When this option is enabled, AutoCAD displays dimensional values at the cursor.
Although the Dimension Input option is not a property of dynamic blocks, it does produce the desired effect.