Software of Sharing login and password of website with many users

I want to create a software (groupbuy service) the software that makes me share paid service membership to other users for free. Explain: 1. I will get paid service, I login into a browser like google chrome or mozilla and save the password and login in this browser. 2. I add members to this software (every member will need password and login to enter to it) 3. the member will download this software 4. the member will enter to this software using user and password that I will give him. 5. he will see the icon of the paid tool that I bough and he will enter to it, without entering data of this paid tool because it should be saved already. -And all users will have their user and password and could use the same tool in the same time without conflit! no one will notice that others using this tool with them. the ideia of the software is like showing in this video: [login to view URL]:1610870772623595631&th=165af66ed549d86f&view=att&disp=safe&realattid=f_jlqp8kda0