Currently it is extremely hard to get or set the text and clickevents on a sign from the itemstack. For Books, there is a BookMeta (spigot) interface that allows you to get all pages, clickevents (and hoverevents), but no equivalent for signs exist. Even the BlockData Sign for placed signs is insufficient, as it only allows you to get and set the lines of the sign, but no further information, e.g. ClickEvents.

I could use the direct keys like text1, text2 and so on, but minecraft 1.20 will likely overhaul that system and it will be wasted work. Moreover, 1.20 will introduce front and back texts to signs, further complicating the endeavour without an API.

Therefore, I would like to see a similar SignMeta interface that allows you to do just that, similar to BookMeta.