Scheduling a dynamic xaction calling PDI Component

Hi,

I have an xaction which accepts dynamic parameters and pass the parameters to a PDI Job which executes accordingly. Each time the parameter value only gets changed but the job will be constant. What I want to do is, If first time, the parameters are passed, I want to schedule and run the xaction or PDI job with the given parameters. So, each time if the scheduled job or xaction runs, it should use the same parameter.

Likewise , using the same job , I will schedule different times but my parameter will have to get changed accordingly . How to do that ?

How to implement scheduling for xaction other Pentaho Admin Console ?