It seems that you need to trigger some events. You should be able to do this if you try to enable/disable the test step property SimulateRealTyping
for the typing test steps. You should be able to invoke the proper event also in a coded step. Please check out our documentation
in order to get detailed information.
You should also be able to use databinding in a coded step. You can read this article
for a similar solution with coded step.
If you continue to experience any issues, please provide us with a copy of your test and if it is possible grant us access to your application so we can reproduce the issue on our end and give you a solution.
Looking forward to hearing from you.