Modify Unity Coloring Game For IOS

i want modify my unity coloring source code which i bought form [login to view URL] i want to modify like this game [login to view URL]

modify list

1 Change first page when launch to page play game

2 Add In-app purchase

3 Change Home Button to Open file (In-app purchase page)

ユニティー3D

プロジェクトID: #9526565

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