Definately as the previous reply mentioned, unfortunately it does not trigger anything internally.

I wanted to do something similar where the marketing people in a shopping centre (shopping mall) could load music into a CD player with serial control, and in Davinci change the schedule of what played when.

It is similar except I knew I had to use an external device. But the critical thing is that as mentioned, the scheduler cannot be used in a Davinci layout.

In our situation we set up a generic time schedule in the Audia software, based on their most anticipated requirements, told them how many audio files they could put on the CD and in what order.

this allowed them to maintain the frequency of certain messages and sell the time slots (and number of repeats) to the shop keepers.

I think the scheduler needs to be included in Davinci and would enhance existing systems and poosibly open things up to get more systems into different markets.