There are a lot of good ideas for the custom fields. But, I want to add my 2 cents also.

When filtering devices, we should be able to filter by custom field from the above level. i.e. devices should be able to be filtered by a custom field from the associated customer.

Add Custom field filtering to the customer level.

Need to add new custom field types: image, textarea, and hidden. I don't need to SEE all of the info on my customer or device screen. (make sure I can still edit it though)

It would be neat to have icon-like values. I am thinking red/green dot for on/off, gauges so if we use SNMP we can create a gauge for the black toner, similar to that

Remove/Change the Customer type (gold, silver, bronze) and all us to create "types" such as Fully Managed, Monitored, Remote only, etc. If you have more than 3 types, the 3 colors don't work.

Top level "Account" custom fields. For example, some software has 1 license key for everything. Let me set an account customer field to hold that key and allow me to access it via powershell.

I would like some of my customer fields to have default values. Allow us to set the default selected value.

It would be nice to be able to have an HTML field or an iframe type. For instance, I would love to integrate Harvest time app in my tickets and clients. This will allow me to embed javascript to track time in my preferred tool.