To your questions:
1. As of now you still have to change the shader type for the lights. I hope that with a new update of TPS this will work. Up to now it does not save the shader type. Once I release it I will write which objects to change to which shader type in the descriptions as I did with my other rides. Sorry, can't help it.
2. The lights will always work, also during daytime however in the dark it is better seen.
Once I release the ride I will write important notes in the description but is not that difficult. Of course feel free to ask me on the forums as well if needed.