I had some questions about the limitation to 5 columns of the OmniPortlet tabular layout. Here is a tip to add more columns to this layout:
backup the current OmniPortlet provider.xml
You can now open the file, and look for the tag
You can add new fields, by copying the existing
<dataField>tag and change the value of the
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The same logic could be used to add parameters or events to the OmniPortlet.