TODO item: Allow substring/replace() to get/set bit values

<div class="Section1"><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">I was just searching though the TODO list to try and find a quick one that could be ticked
off.</span></font><pclass="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">Under functions there is “Allow substring/replace() to get/set bit values”.</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">Does anyone have any more information about this? </span></font></div>