associate text to chord

[achar]

Hello everyone. When performing a harmonic analysis of a jazz standard, 
I would like to associate each chord with its Roman numeral equivalent. 
However, this is not possible in all cases because, for example, if a 
measure contains a whole note and there is a chord change on the 3rd 
beat, I cannot associate the Roman numerals with the second chord . 
There is of course the possibility of replacing the round note with two 
linked white notes. but this is not aesthetic. If anyone has a solution, 
please let me know. Have a good day. JP