Introduction
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figure 1: the GUI of the Database Viewer
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Doubleclicking in these time columns will provide the user with the following, see figure below.
figure 3: Special filter in the Start/End time columns
Meta Data Elements / Select Columns (F8)
figure 4: Selecting different columns (elements) in the Database Viewer
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Selections can be copied to the clipboard (<Copy Selection> button) and adjusted in a text editor (figure 5). These lists can be shared amongst users (e.g. e-mail). From a text editor you can adjust the list by removing rows, select the remaining rows and then copy it the clipboard (<CTRL+C>) again. After that use the <Paste Selection> button to update your selected columns (figure 6). See below: 
figure 5: Copying the selection of columns to clipboard
figure 6: Pasting the selection of columns from the clipboard
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- In Database Viewer, select one workflow, press F12, a menu will pop out (figure 7).
figure 7: F12 menu in Database Viewer
2. Select '9 Delete module instance for selection', the module instances in this workflow will be displayed for selection. One can select the module instances that should be removed from the database.
figure 8: select module instances to be removed from database
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To completely remove this workflow from the list, go to FEWS F12 menu (in log panel, press F12), select 'P database', select 'validate, repair, and compact datastore indices and cache files', then restart FEWS, the workflow will be completely removed. To completely remove the data from the localDataStore (i.e. reduce file size), press F12, select 'P database,' and select 'repair and defrag localdatastore'.
figure 9: Remove workflow and data using F12 - P - database menu
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