Normally you'd use a user pass to create content. But I suppose it's possible with a login pass too if you really want to and are willing to create the necessary security rules. See the online help for more information: Managing license and tokens ‒ Qlik Sense
Dear Deepak and Gysbert,
It´s possible to develop either Login Access then User Access, but don´t recommending Login Access because a time limit and all time spending on development process.
Regarding Tasks, take a look on Qlik Help like below:
Please, mark the both CORRECT/HELPFULL comments.