Problem in major station label begining by 3510 and increment 40

[engahmedabdelatymagic]

ROAD Alignment with length 730 meters the begining station is 3+510  and the increment value between major stations is 40 meters

there is a problem acurred as showen  3+510 then 3+520  then 3+560  the progrm dont apply 4o meter increment

i want it to be 3+510    3+3550      3+590   .......

what shall i do ??!!!

[Ed-Hovsepyan]

If you will not find way to solve problem, do it manually )