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Locale word Owner in create appointent window can be customized at sample level as shown in the below highlighted code example.
<Code>
.Resources(res =>
{
res.Field("OwnerId").Title("Owner").Name("Owners").AllowMultiple(true)
.ResourceSettings(flds => flds.Datasource((IEnumerable)ViewBag.Owners).Text("text").Id("id").Color("color")).Add();
})
</Code>
Please let us know if you need further assistance.
Regards,
Karthigeyan