In Tally.ERP 9, you can enable and use the available features as required for your company. F11: Features, when enabled or disabled, will apply to the current company only.
To enable company features
1. Go to Gateway of Tally > click F11: Features.
2. Select the required features in the Company Features menu.
3. Enable the required features.
4. Press Ctrl+A to accept.
Note: Certain features like multi-currency and multi-locations, once set to Yes, cannot be modified if the feature has been used. However, other features like Bill-wise details, Reversing Journals, and Optional vouchers, and so on, can be modified even if they have been used.