MercatorUi.Forms.Action.CrmTasksForm.Filter filter = new MercatorUi.Forms.Action.CrmTasksForm.Filter
{
    DueDate1 = new DateTime(2023, 3, 1),
    DueDate2 = new DateTime(2023, 3, 3),
    DoneOnly = MercatorUi.Forms.Action.CrmTasksForm.FilterDone.OnlyNotDone
};
MercatorUi.Forms.Action.CrmTasksForm crmTasks = new MercatorUi.Forms.Action.CrmTasksForm(filter);
crmTasks.Show(MercatorUi.Globals.iw);