Mid-roll ad insertion

After following this blog “https://kc-public.kaltura.com/faq/how-configure-mid-roll-ads”, i am able to do mid roll ad insertion in a video.
But, I want to do this at the player level so that i don’t have to add cue-point in every video.

Also, can me do mid-roll ad insertion in live stream?

Hi,
pre-rolls, mid-rolls and post-rolls can be configured using a VAST XML or a DoubleClick Ad tag URL.
This configuration is set in the player level and not per entry.
As for mid-rolls inside a live stream - this is not supported as far as I know.

Please also see:
http://pubads.g.doubleclick.net/gampad/ads?sz=640x480&iu=/124319096/external/ad_rule_samples&ciu_szs=300x250&ad_rule=1&impl=s&gdfp_req=1&env=vp&output=xml_vmap1&unviewed_position_start=1&cust_params=sample_ar%3Dpremidpost&cmsid=496&vid=short_onecue&correlator=