Use the code below to remove specific characters from a value in a filter. Change 205 to your View ID and change 84 to the ID of the field in the filter.

If you would like your input fields to show the field title on hover, you can add it in your customizable HTML with [input title="The field name"]. If you would like this to be on a larger number of fields, php may be easier.

Change 554, 555, and 556 to the IDs of the fields that you want to make conditionally read-only.