I have some issues with indentation in KDevelop. I've set (in settings) to intend with spaces, and to have tabs of length 4 spaces. However, KDevelop keeps intending with 2, and I have to always add the second tap to get a 4-space-tab appearance. If I have the 4 spaces indent, it keeps intending the block correctly. What should I do to fix this?

Also, I have another issue: I'd like for the indentation to stay in empty lines. I tried to have 'Keep extra spaces' on, however, this does not seem to be helping. Is there anything I can do about this?