Control widget from external ui_template

sorry if this has already been posted,
is it possible to control widget from ui_template javascript?
im just trying to select trigger a dropdown selection of the ui_timescheduler widget

this area here:

<md-select class="nr-dashboard-dropdown ng-pristine ng-valid md-auto-horizontal-margin ng-empty ng-touched" ng-model="myDeviceSelect" ng-change="showStandardView()" aria-label="Select device" ng-disabled="isEditMode" tabindex="0" role="button" aria-haspopup="listbox" id="select_65" aria-invalid="false" aria-labelledby="select_65 select_value_label_61" aria-disabled="false" aria-owns="select_listbox_67" style=""><md-select-value class="md-select-value" id="select_value_label_61"><span><div class="md-text"> Overview </div></span><span class="md-select-icon" aria-hidden="true"></span></md-select-value></md-select>

thanks for any guidance