I am trying to delve deeper into workflows. My current goal is to create a workflow that allows customer change status on their raised requests at certain points. I started simple and created new workflow from the scratch. Suddenly I have encountered work blocking problem. I am unable to configure if it is possible to show transition in the customer portal.
I checked a flow where such configuration is an option and tried to figure out what causes this difference. At first I thought it is caused by missing properties. I spent few hours reading documentation learning nothing useful (and still having no clue what properties are) and ending in documentation loop.
So I added remaining options and yet there is still no possibility to configure show transition in the customer portal.
I must have missed some devilish detail 
