Unity3D 2018.4.12f1 File system

A cross platform IOS/Andriod file system that can do the following: 1) shows Unity3d asset folder of a folder name “UserData” or what I change to. 2) show only the file type Folders created by user, but not folders that start with “_userchosen file name”. Where userchosen is not shown in path. Idea is shown more in #4, but a user can create a file name, but it really creates a folder and the XML file name they chose is inside the folder as the folder will have 4 or 5 things added later that are called from the XML. Example I create file Steven, folder Steven would have file [login to view URL] inside folder. Your work would not show the folder Steven, it would show the file ./Steven/[login to view URL] without the XML extension. 3) ability for me to change default folder and file icon 4) ability to create folder, create basic XML file (this should create a folder name and have the real XML file inside the folder, as I will have many supporting files that will go inside folder that the XML file will call to later) inside the folder, ability to move th XML file from one folder to another folder, ability to delete XML file or folder 5) ability to click button to show folders/files by list view, by grid view. 6) ability to click on different button to solt by alpha up/down, date up/down 7) ability to search for document names 8) ability to show X number of files or folders, then at bottom to click on next page. Example if max per page is 8 and total of 30 files and folders, that it would not scroll, the user would get to bottom of page and click next page or previous page if on a page 2 to go back to page 1 or forward to page 4 9) ability to create folders inside folders and move files or folders from one location to another. 10) scale GUI so it works on phone/tablet I would need all C# and unity prefab or unity files when completed