HIPS and SIPS Module : HIPS and SIPS Editors : Swath Editor : General tab : View soundings as points or lines : 3. Click the up or down buttons beside the Point Size box to set a size value between one and five pixels.
 

3. Click the up or down buttons beside the Point Size box to set a size value between one and five pixels.

Changing the Point Size will also change the size of the points in the Plan view.