最後の「する」を標準語に直して説明してください！

①ええ加減にしときや！
②ええ加減にしいや！
③ええ加減にせい！

質問を翻訳

1 いい加減にしておきなさい
2 and 3 いい加減にしなさい
all of them are same meaning.
and casual way is いい加減にしろ
this sentence is a little difficult for me to tell you meaning. it has meaning like ”that's enogh!”,”enogh is enogh”,”stop it”,”cut it out”,”gimme a break” and other...
1,2,3 are dialect used in around Kansai(or Kinki).