Feature Request

Is your feature request related to a problem? Please describe

Yes, after auto created huge number of graphs without graph template in my plugin, it shows 'Not Templated' in both 'Source Type' and 'Source name' fields. In Console->Management->Graphs.

We need to provide hooks to customize the 'Source Type' and 'Source name' fields for plugins. Because these graphs without graph template can have some special property for plugin.

A clear and concise description of what the problem is. Ex. I'm always
frustrated when [...]
If no hooks for this, plugin develop have to update the graphs.php again and again after cacti core upgraded.

Describe the solution you'd like

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Describe alternatives you've considered

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considered.

Additional context

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