I really want to create a custom trait and I have no idea how to go about using Mod Construction V4. There aren't any detailed instructions letting me know what everything does, or even mean; nothing explaining the basics for a beginner.
What are inline elements?

What are core buff, commodities, autonomy, and loot (continuous loots), and what do they do.

What is a broadcaster?

Export Modifier, what is it and what does it do?

Modifier and multiplier what are the differences?

Thanks so much for helping me. Fair warning I might have more questions later on.

Heya so for your questions your best bet would to go to the tdescs page on the ea sims4 modding forums, then get the tdescbrowser from here then its a case of following along, a good way to start is by reverse engineering traits and buffs ect in the game already. Hope this helps, you might also want to run through sims4 modding tutorial by maxis.