My Name is Hideaki Hagiwara in Japan.
I think that Workflow of iDempiere is very usefull.
And I want to update user(AD_User_ID) of WF Activity in a lump.
So, I made process.
This process update user(AD_User_ID) of WF Activity that WFState is "OS" and Processed is "false".
Please,see attachments WFActivityUserBatchUpdate.java.
It is very simple process, please use it if good.
I'm sorry for my poor English.
Thank you for reading.