Override Write and Profile Page

Hello,

I would like to know the best way to override the two following views:
- User Form
- User Profile

I would like to be able to put fields one by one to specific location. (and not use position in the admin interface)
Like this I can display form exactly like I want.

I think I need to create a template plugin, then is there some specific functions to call to display the "field form" and "field value" ?

And If I want to display a tab "user plugin", if you have also some example

In other words, I want to place fields and tab myself on the page.

Finally, is there a way to "customize the display of a field type form", like If I want to put the name of the field as a placeholder in a textfield, use chosen.js for the display on a dropdown field etc... (only hack solution or plugin is possible). Event if this is hack if you have a pointer of the code where the fields are rendered ?

Thanks in advance

Best I can suggest is look into CB Profile Pro. There's no easy way to do this without developing a plugin to completely output new views using CB triggers.

Finally, is there a way to "customize the display of a field type form", like If I want to put the name of the field as a placeholder in a textfield, use chosen.js for the display on a dropdown field etc... (only hack solution or plugin is possible). Event if this is hack if you have a pointer of the code where the fields are rendered ?

No, field output is generated dynamically. Some fieldtypes need very specific output. The only way to override this is to flat out replace it using a new plugin and triggers.