Before i even respond, i need to mention a few things to you.
Firstly,
Dev Wiki is your friend (direct link provided to you on top of the forums). I suggest you take the time to look at the HPL2 information provided therein, preferably all of it.
Secondly, search before asking. For a more precise search, use Google, making sure to include
site:frictionalgames.com in the search query.
Thirdly, try to make your topic titles reflect the issue therein.
Lastly, when asking for help with your custom story, ask at the
Development Support forum, not where you have been posting.
As for your question, you are only given the option to open the door slightly for swing doors. Select the door in the level editor, and in the Entity tab to the right, look for OpenAmount. Change the value from 0 to the desired amount.