DYNDIGRIP system variable
Function Description:
The DYNDIGRIP system variable is used to control which dynamic dimension displaying when stretching grips.
Type : Bitcode 
Saved in : Registry 
Initial value : 31 
Range : 0 ~ 31
The DYNDIVIS system variable must be set to 2 to display all dynamic dimension.
System Variable Value:
0 : none
1 : resulting dimension 
2 : length change dimension
4 : absolute angle dimension 
8 : angle change dimension
16 : arc radius dimension
The DYNMODE system variable is used to turn on or off dynamic input.