How to Make Walkthrough Bricks on Roblox

I you want to make a house with a door that you can you through,well look at this instructable! I'm making this on a mac.
NOTE:Please comment!Not mean stuff… but plz leave me comments for me too know what you want to make on roblox studio or roblox so i can make an inscructable about it.

Well now you dowload or open roblox studio 2013.And remember,this is on a mac so the application may be different.

Go to "build" mod and wait ... .Take a normal brick by clicking this little block thingy down below.

You going to place a random block and youl anchore it by clicking option/alt+A,then click then block.

Now click the drag icon,then you click on the modified block(simple explication;select your block).Then your going to open propreties.

Now it should look like this.NOTE:UNCHECK THE INDICATED BOX!
Now test it by walking trough it.

Friend me on roblox!Friendlycoralie and coolcoco2013*alt*but also me!Email me on instructable or at coolcoco2013!Send me emails for tutorials!