"multiple mod" + "remove mod" question

Ahoj, let's say I'll craft 'multiple mod' mod via my 8lvl elreon, then 'spell dmg' mod via catarina and i got the lowest roll possible. Now is it possible to remove only that 'spell dmg' mod through catarina's "remove mod" option, or its going to remove all crafted mods, including the elreon's "multiple mod"? ---- And what if I'm ok with that "spell dmg" and I'll craft "cold dmg" as a 3rd mod and that is going to be lowest possible, then by "remove mod" catarina is going to remove only the last one crafted, or both catarina's mods? or all of the mods crafted including elreon's one too?

Could some1 explain it to me plz?

You can't pick and choose crafted mods to remove. When you "remove crafted mod", you remove them all.

If the roll is too low then you can spend div orb and reroll those values. Remove crafted mod mean every crafted mods will be remove.