Copy and Pasting into description or other field

Hi - I know JIRA has the ability to add attachments and to use the "Attach Screenshot" functionality - however the Service Desk should give the option for Customers to copy and paste an screenshot of an error on-screen into the initial ticket they are logging on the Portal. Having to save a copy, then go and attach, is laborious and very archaic - the customer experience is disappointed that this simple fucntionality hasn't been provided. Can someone please look into this as it's a big problem with the way a lot of customers report issues through the Portal. Thanks
Jp