In most dialog boxes in Muk3D where a number is entered, the form is just after a single number. In some forms, its possible to enter a range of numbers and the function will loop through each value in the range and execute the command. An example of this is the command Surface/Contour/Contour surface by sequence.
In the Sequence field, you can enter a series of values and then contours will be created at each of these elevations. The formatting for Range fields is described below.
The first entry in the sequence field is:
800, 900, 5 (start value, end value, [optional interval])
This will create values between 800 and 900 (inclusive) in 5m increments. If the interval value is omitted, then it defaults to an interval of 1.
The second and third entries are separated using a semi-colon. This allows for discrete values to be entered into the field.
950;1000
This will generate two elevations: 950, 1000.
If a single value is entered into the field:
900
then only a single elevation will be contoured.
The table below shows the results from different values entered into the field
| Field value | Result (elevations) |
| 800 | 800 |
| 800, 900 | 800, 801, 802, ..., 899, 900 |
| 800, 900, 50 | 800, 850, 900 |
| 800, 900, 30 | 800, 830, 860, 890 |
| 800; 900 | 800, 900 |
| 800, 900, 50;930 | 800, 850, 900, 930 |
| 800;900; 1000 | 800, 900, 1000 |
| 800, 900, 50; 930, 1000, 30 | 800, 850, 900, 930, 960, 990 |