Hi i figured out how to change dpi to 400
1. close cue
2. go to cue folder
3. go to devices folder
4. find profile_harpoon_rgb file and open it
5. find the 180-182 line and it will look like this
<MinDpi> 250 </ minDpi>
<MaxDpi> 6000 </ maxDpi>
<DpiStep> 250 </ dpiStep>
6. in mindpi change 250 to 200 and in dpistep change 250 to 200
7. save it
8. open cue and change dpi to 400
and sorry for really bad english