Using JS Link set field value OnPostRender

Question

I want to set field values of different fields after OnPostRender using JS Link.

I am able to create the field and set value, but I want to set value only and for the little task I think creating the whole field is not a good idea.

Below is the required missing code

(function () { 

    SPClientTemplates.TemplateManager.RegisterTemplateOverrides({
  OnPreRender: function() { console.log('CSR OnPreRender'); },
  OnPostRender: [
   // set value in Title field
   // How to do this ?
  ]
});

})();

Below is the Working code which creates field and also sets value

(function () {


    var ctx = {};
    ctx.Templates = {};
    ctx.Templates.Fields = {
        'Title': {
            'NewForm': setTitle
        },
        'Body':{
            'NewForm': setBody
        },
         'Project':{
            'NewForm': setProject
        }
    };


    SPClientTemplates.TemplateManager.RegisterTemplateOverrides(ctx);


})();


function setTitle(ctx) {
    var temp = 'Title 1'; //extract parameter from a query string    
    ctx.CurrentFieldValue =  temp ; //set field value   
    return SPFieldText_Edit(ctx);   
}  

function setBody(ctx) {
    var temp = 'body text lorel ipsum';    
    ctx.CurrentFieldValue =  temp ;   
    return SPFieldText_Edit(ctx);   
}

function setProject(ctx) {
    var temp = 'p2';    
    ctx.CurrentFieldValue =  temp ; //set lookup field value 
    return SPFieldChoice_Edit(ctx);

}