Changing Null Levels (-999) to Zero level for multiple points in a string

Question

Hi All, 
 
 I am using MXRoad SS2. 
 I was trying to change null levels of few points in a string to zero level. 
 By using minor option 021/022 I was able to do that, but I can do that for single point at a time. 
 How to change ALL null levels in a string to zero level on one go. The string is having points with other level also, which I dont want disturb. 
 Thanks in advance. 
 
 Regards 
 Anil

Mark Marnell · Accepted Answer

Anil 
 I do not think you can do that in one go - but it is a simple job to do with a text editor. 
 Step 1. REPO, 992, 2=null - list all the points with null levels to the output window 
 Step 2. Edit, 021,- paste 021,3=,8=3,9=0,6= as many times as necessary.to your text file 
 Step 3. Fill in the string name for field 3 
 Step 4 - give the point number for field 6 
 Run the file. The whole procedure takes minutes at most. 
 Mark