I still my original question answered but here is a workaround.
You can import CGATS file with 256 grays in colorport and make a target measure it in colorport.
Save as Profilemake CGATS XRGA.
Load the CGATS XRGA file in your i1profiler in printer profiling -> Measurement tab. Click save button save as .mxf to a known folder.
Open Profile optimization and select your profile to be optimized.
Make sure smart patch generator is a at 0, patches from spot colors at 0, patches from image at 0
Go to "Measurement" tab click Load and select your .mxf file.
Now here is why saving your measurement in colorport v2 in profilemaker5 XRGA important.
If you save in non XRGA format, you will not be able to load measurements in profile optimization.
You will get a pop-up to select your file standard like you get when opening CGATS file in "Printer profiling" - > Measurements tab.
However if you select GMDI GretagMacbeth - you will get pop up (Invalid measurement file.)
This is NONSENSE, X-RITE want to kill Profilemaker5 software line, they want so you can optimize profiles measured with i1Profiler only. We are lucky someone forgot about colorport v2 when making this restriction.
Measuring in i1Profiler is nonsense because of stupid smalled white separators for i1iO targets, inability to measure small targets, colorport can be hacked to measure small targets
Xrite want us to use isis only???