Can I customize the module contents of ERPnext?

Good Day sir,

                   Can I actually customize the contents of modules of ERPNext?. For example I would like to   hide or remove the Time log and Time Batch in the Projects Module. 

                                                                                                          Thank You,

If you remove permissions, the items will disappear.

Im having this error now, I was installing another erp on another laptop : IOError: [Errno 13] Permission denied: ‘/home/rd/frappe-bench/logs/bench.log’

That is a separate issue, related to file permission.