Read the cube value in the process widget by using the template snippet

Hi there,
It’s probably have the capability to show the cube value with snippet by tm1-ui-dbr or anything that as one of the parameter in th process widget?

I tried the code like this but it failed…

<pf-form-group-apq
ng-if="param.name=='pBUDAmount'"
pf-label="Program Budget" required pf-label-class="col-sm-3" pf-input-class="col-sm-9">
<tm1-ui-dbr-apq
    tm1-instance="UX Demo" 
    tm1-cube="Program Master"
    tm1-elements="
    {{$ctrl.settings['UX Demo.Department.Department']}},
    {{Program 1}},
    {{Original Balance}}"
    ng-model="$ctrl.finalParameters[4].value">
</tm1-ui-dbr-apq>
</pf-form-group-apq>

Thanks!