Custom TaskList and Tasks creation based on project custom field

Hello,

I'm trying to configure Zoho Project for a specific use. I have created a custom multiselection field in project template and I would like to create one tasklist with multiple tasks in it depending on the multiselection field on each project.

For each task, I would like to define the duration, end date and defined and owner of the project or specific person.

I plan to have one custom fonction per selection in the multselect field.

I already find how to execute a custom fonction based on the multiselection field update, how to create a simple task in to tasklist but impossible to create mutliple tasks in one tasklink using deluge.

Can you help me please ?

Thanks,

Sébastien