XDF - Ford Scaling table

I've been playing around with XDF for my 16 Mustang and found as following:
2D Matrix is referencing two 1D tables as its X and Y axis, but there is some wierd scaling algorithm with axis values that I cannot reproduce via User Defined Parameter definition.

For example in BIN a can see table scale as following, note there is missing record for index 4.000 and double records for index 9.000

25.000 | 00 00 C8 41
0.000 | 00 00 00 00
100.000 | 00 00 C8 42
1.000 | 00 00 80 3F
259.000 | 00 80 81 43
2.000 | 00 00 00 40
550.000 | 00 80 09 44
3.000 | 00 00 40 40
800.000 | 00 00 48 44
5.000 | 00 00 A0 40
875.000 | 00 C0 5A 44
6.000 | 00 00 C0 40
1100.000 | 00 80 89 44
7.000 | 00 00 E0 40
1500.000 | 00 80 BB 44
8.000 | 00 00 00 41
1800.000 | 00 00 E1 44
9.000 | 00 00 10 41
1800.000 | 00 00 E1 44
9.000 | 00 00 10 41

HPT in their definitions somehow "smooths" this by interpolating value for 4.000 and scrapping extra 9.000. See attached screenshot

Is there anyway to achieve same result by XDF definition ? Maybe some extra field/flag is required

hptuners-user-defined-param.png