Uploading project to hololens

hi, i am trying to upload this example project on to Unity, but it seems like there is not a mixed reality option.

it seems like this project was not already configured to the mixed reality toolkit when it was made, so can i upload it on to hololens? i am just trying to get a working, functional textbox display that i can click and shows a drop down menu. if not, what are some other ways in which i can make this happen?