I have a report which drills through to the same subreport from multiple links depending on the column. Each column passes different values to a parameter in the subreport. The parameter in the subreport supports multiple values and if the parameter is exposed through the UI I can select multiple values and all is good however if I try to set the values in the Subreport action dialog I can only specify one value and cannot workout a format that will simulate the multiple value approach supported by exposing the parameter in the UI.
Is this simply not possible? Below I have highlighted where I would like to specify multiple values.