Control the way parameters are displayed using the Properties palette.
In the Block Editor, you can specify properties for a parameter in a dynamic block definition. Some of these properties can be displayed as custom properties for the dynamic block reference when it is in a drawing. These properties are displayed under Custom in the Properties palette.
Other parameter properties, such as Value Set properties and Chain Actions, define how the block reference will function in a drawing.
When you select the dynamic block reference in a drawing, parameter labels are assigned to custom properties in the Properties palette. You can specify whether or not these custom properties are displayed for the block reference when it is selected in a drawing. These properties can also be extracted using the Attribute Extraction wizard.
It is good practice to specify unique parameter labels within the block.
Use the distance multiplier property to change a parameter value by a specified factor. For example, if you set the distance multiplier property to 2 for a stretch action, the associated geometry in the block reference would increase and double the distance of the grip movement.
Use the angle offset property to increase or decrease the angle of a changed parameter value by a specified amount. For example, if you set the angle offset property of a move action to 90, the block reference would move 90 degrees beyond the angle value of the grip movement.