KNIME batch execution with several variables and R script nodes

Hi

In principle it is clear to me how to run KNIME in batch mode. The explanation can be found here: http://tech.knime.org/faq#q12

What I would like to do is the following:

• I would like to use more than one workflow variables. Do I need several option like *-workflow.variable=my_integer,5,int*

• I have some interactive R scripting nodes in the workflow und a R installation for these R nodes. What do I need to consider to make such workflows executable in batch mode?

• Can I run the zipped workflow several times in parallel?

Frank