nca_wait_for_timer(NCA_TIMER_NEAREST); where to configure the value for NCA_TIMER_NEAREST

I am scripting for Oracle forms application, I need to generate report which will be downloaded post clicking on Generate Report. 

In script it has recorded multipple nca_wait_for_timer(NCA_TIMER_NEAREST); functions. 

but script fails to replay. please help how should I handle this.