Base map- can on customize

Hi
As the project I am working on is facing location position problems, They are getting a very high resolution drone orthorectified aerial image shot (3cm accuracy), which will be used as a basemap. Outlines will be digitised on the georefrenced image. Is there away to import shapefiles or geotiffs into Kobo so it can be added as a map backdrop? ie can one customize the map so that field users place a point on the map we create? Or is there another app that allows this?

We want the field person to log the shack number to the vector outline, If it can’t be done in kobo then some other way to circumvent human error is sought… Once the outlines are linked to shack numbers we can link the attribute data.

If not as a geotiff backdrop, perhaps i could create a kml or kmz from shack oultines and import that for the field person to use as a reference?

thanks
Uma