In Qlikview you cannot do that without a trigger. You'll need at least an OnOpen trigger.
In Qlik Sense you can use a bookmark and set it as the default bookmark so that when you open the document that bookmark is applied and its selections are activated. In both cases.
In either case the default selection will only be applied when opening the document. Once the user changes the selections it will never automatically return to that selection. Clearing the selections won't return the Line of Date selection in the LODim field.