How to change the dashboard or desk view after login to frappe hr

In the frappe hr 15, once the employee logs in, he/she will be able to view a customized view using calendar, leave balances, assigned tasks, projects assigned to him/ her. I also want to hide the erpnext, frappe hr links from the left sidebar and put a combined navlinks such as projects, leaves, shift & attendance. Please suggest how to implement it.

Please suggest if you know how this can be achieved