Add a custom indicator without the source code

I think that the possibility to create a custom indicator and to share it with the community is a great thing. 

To be able to improve the list of possibile indicators and the community of people around it some features are important:

1. Add a search field to find what you want

2. Add the possibility to share your script without the source code (a sort of copyright / permission to use)

3. Add the possibility to insert a price for the script and receive money in your account.

Tradingview contain the second feature, MetaTrader the third. 

I'm a trader and I'm a developer, my trader side wants to have a long list of indicators to find what I need, my developer side wants to protect my creation and receive money for the numerous night unsleep.