How can I delete a map from a map package?

[Gugam]

For example, of the 5 maps that come in the package, I would like to delete 1 because I won't use it, how can I do that without leaving errors in the file?

 

[DylanDude]

Open the addon in SLADE and delete the map WAD or lumps associated with it. Then, find where the level headers are stored and change any one that has the now-removed map listed under the NextLevel parameter.

 

[Gugam]

Hmmm sounds a bit complicated, I have SLADE but I don't know much about programming :((, don't you have any tutorial?

 

[DylanDude]

Hmmm sounds a bit complicated, I have SLADE but I don't know much about programming :((, don't you have any tutorial?

You'll probably need to understand how to make maps before you'll be safe editing map packages. This isn't programming. Here is a series of video tutorials on mapmaking. https://www.youtube.com/playlist?list=PLwDz6d1qsTCeLVKqRSywq7NcXnwVHaqmt

There is no tutorial on editing someone else's map pack, because you're usually not supposed to do that.