Wikitude

Hey

      I am a student and I am trying to use Wikitude for my project in Android studio in university. I was struggling with multiple image tracking. I ran the sample code it works fine but I am not able to figure out how can change tracker and 3d model of samples with my own tracker.wtc and sample. I have tried to make wtc file for 3 images using Wikitude project manager then add it to sample project but it did not work. 

I have also tried to download the offline project from Wikitude manager but code runs fine in Android studio but when added js files to sample code and called index.html file it does not show anything.

Is there any tutorial that tells how change 3d models and tracker.wtc with our own.