2 little issues

In first of all i would like to thanks you for this really simple and complete player, i’ve spent lot of time trying many players and none of them seems to be complete and simple like this one. For this reason i would like to use it in my website but i have 2 matters: 1) I can’t make it responsive, where have i to set it to make it responsive? Setting up 16:9 or 4:3 in the “responsive” form nothing happend, i’ve cleared the “width” and “height” forms too. but when i go to resize the browser window, the video player keep dimension fixed. 2) Playning the video, i can’t go forward if the buffer hasn’t reached the position that i’m going select, if i load a weight video and i want to start watching it from 30:00 for exaple, i must wait for buffering at latest the first 30 minutes. Can i solve these 2 matters? Thanks in advance for your kindly and your support and sorry for my bad english. https://wordpress.org/plugins/stream-video-player/ http://rodrigopolo.com/about/wp-stream-video/how-to