Installation in your template

1) Login to bitrix

2) From admin panel. Go to site template Control Panel/Settings > System settings > Websites > Site Templates

3) Click "Three Lines" and select "Edit"

If you forgot about what template you are using on your site, you can see it in this section: Settings -> System settings -> Websites -> Websites-Modify.

You can see a list of all templates, used on all of your websites.

4) On the next step, paste the GtChatPro code before the </body> tag. Make sure to save your new settings by clicking the “Save” button. 

The GtChat code is available in the Gtchatpro, in the Channel section: Dashboard > Channels > Add New if you already created a channel then Dashboard > Channels > Manage> Edit

Note: If you use multiple templates, you will need to install the GtChatPro code on each template.