1. In manual installation for "Temporary file path" create '[[softpath]]/tmp' directory and provide path to this directory.
2. Choose country 'United States'.
3. Choose Timezone 'America/New_York'.
4. Set Currency to '$'.
5. Dont provide SMTP server details, just click 'continue'.
6. PHP REQUIREMENT LINK : https://www.group-office.com/wiki/System_requirements
7. __getPasswordErrorString function is added in edit because while updating password in manual installation, it checks for these restrictions and the same is not checked while installation. Hence this is added only in edit and not in install.php