The easy way is to use WarpIn to remove the entires (don't uninstall), then reinstall, changing the target as required. You may have a problem if the package doesn't allow you to select individual paths for the DLLs. Most will automatically select the default path (usually either \OS2\DLL or \eCS\DLL).
I will comment, that you are simply making work for yourself by doing that.
problem is this file does not appear to use the standard OS2 INI file formatting
The INI Viewer, from FM/2 (in the tools), works, for me. The file name is "DATBAS_G.INI" where G is the boot drive letter, so you can use a single WarpIn install with multiple boot drives, if you like. I haven't tried using it to change anything in the INI file.