Back in November 2013 we introduced the data type “Selection” (drop-down-list) to the custom fields (see our blog post). When creating a field of this kind, you or your administrator define a list of possible values. One of the values can be selected.
After hearing repeated requests from the portatour® community we added an extended form of selection: the Multi Selection. This new data type allows selecting multiple values from a list:
Tip: On Windows, hold the ctrl-key when clicking to select multiple elements.
P.S. Users of Salesforce must upgrade to the newest version of portatour® for Salesforce to use the Salesforce “Multi-Select Picklist field” as custom field for portatour® Anywhere. Microsoft Dynamics CRM does not support multi-select fields.