It is common for online banking services to ask for a subset of characters from you password. e.g. the 3 5 and 7th characters it would be useful to have a feature that let’s you enter the requested indices and copy the desired subset of you password to the clipboard.
For these banking websites that ask for the 3rd, 7th, 9th, 12th, 18th, and 21st characters - if you have them on your clipboard in that order, will it actually fill them? or is it anticipating one character of input per item?
I suppose it would depend on how the particular form is coded - if entering something on one field causes the focus to be set to the next field, then perhaps copy and paste of certain characters would work
Either way, I think that PR is a nice addition that makes it easy to see which characters you require, even if you have to enter them manually.