TIS 6 User's Manual Advanced Issues OPA in TIS Optimizing Shifts and Staffing OPA in TIS Optimizing Shifts and Staffing TaskActionsBackgroundIt is possible to use [OPA] – Operating Hours Assistant by XIMES – within the [TIS].User InterfaceThe functions of [OPA] can directly be used in the [TIS]Board. The functionality is closely the same to the client version. Editor SettingsIn [TIS]Editor some specialized operators are used. These include:Trigger shift generation 2.0 Using Links (e.g. for icons) in Texts and Resources Setting up a cron job (cronjob)