Freehand editing tool

Hi All,

 

Could any one know how to figure the Freehand editing tool in the Geocortex viewer (GVS , GVH)?

 

_img_ alt="User-added image" src="https://latitudegeo--c.na53.content.force.com/servlet/rtaImage?eid=90660000000Xa8m&feoid=Body&refid=0EM60000000XqSw" _/_img_

 

Thanks in Advance

 

Rawan