Specific format for custom data in references

Does anyone know if it is possible to specify a format for attributes in references when using built in custom template option?

Eg.
{Price, #0.00}

This method works for custom data template in queries.
eg.
<<BO.Timestamp, HH:mm>>

Cheers

Support, is there a way around this?

After 3 weeks without any responses, I guess it's not possible.