Great questions! You can absolutely change the currency that payments are received from Home currency to something else. However, you must first turn the multi-currency feature on. Since you did not mention which accounting software that you use, I will share with you how to do this in QuickBooks Online and Xero. However, I will caution you that once you turn on this feature in QuickBooks or Xero you will not be able to turn it off – EVER. So be 110% sure that you want to use the multi currency feature.
Below, you will find video tutorials on how to turn on the multi-currency feature in QuickBooks Online and Xero:
QuickBooks Online: https://fitsmallbusiness.com/advanced-settings-quickbooks-online/
To answer your 2nd question, yes you can edit any item name or description that you have set up. We have video tutorials on how to do this in QuickBooks Online, see link below:
Best wishes for a prosperous 2018,