Customize "Booking System PRO" WordPress plugin

I need to customize "Booking System PRO" wordpress plugin. To make "weekly view" calendar instead of "monthly view". Now I have calendar with "Monthly view", like in url: [login to view URL] When you hover or click your mouse, you can see reserved and available time intervals of the day. I want to have not a month, but a "week view" calendar. with column names: weekdays + month day. And available and reserved time intervals in rows bellow. I need to see them without any click or hover. There are already coded, that near the time interval should apear Name of person, who reserved this time. I need to keep this. There are a little space for it, so I need my calendar to be fullwidht the page. You can see more in attached file. ONE FREELANCER SAID THAT THIS PLUGIN IS CODED IN DIFFICULT WAY, AND MOST OUTPUT IS WITH JAVASCRIPT. So do your research if free version ([login to view URL]) and bid ONLY if you could finish the work. You can also suggest other Wordpress plugin with similar functions, if you think they fit my needs.