Suggestion from lookup on text type field
How to configure control element binded to some text type field (non-lookup field) to works similar to drop-down list ?
What i would like to achive:
When user typing customer name system should check existing customers from Account object and suggest choose one of they from drop-down list.
In case when typed customer name wasn't chosen from suggested list or wasn't find system should keep typed value on field (not cleaned it after changing focus or saving as is functionality of lookup field).
I would like to implement this functionality on Lead mini-page in creation mode on Account field and Contact field.