[circonian]

It could also be done without table.insert, we could assign a specific key refering to which mark it is.

control.dataEntry.data.FCO.ItemSaver.Marked = {[markedIndex] = true}

But then when you loop through it later to check marks you'de have to remember that there may be keys missing. For example if an item only had the 1st & 3rd mark:

Marked = {
[1] = ...
[3] = ...
}

With the 2nd key missing. So you couldn't use

for k,v in pairs(control.dataEntry.data.FCO.ItemSaver.Marked) do
...
end

Because the pairs loop would stop at the first nil key [2].

table.inert just makes it easier by ensuring the none of the keys for the table are missing so we dont have to worry about it later when searching through the table (but not the only way to do it).

It could also be done like this, if you only wanted to add 1 marker:

control.dataEntry.data.FCO.ItemSaver.Marked = "Mark"..markedIndex

or if you wanted to name them

control.dataEntry.data.FCO.ItemSaver.Marked = {["ReservedMark"] = true}