Hello
We have not made a firmware for the WR941 device, but we have done so for the WR841 which is very popular.
We can look at making a new firmware for the WR941 if you wish to use it and will undertake the testing.
If you install the stable OpenWrt 14.07 BB firmware on a sample device and send me a tar file of the /etc/config directory, I will look into making a SECN firmware for it.
One issue with these devices is that they only have 4MB of Flash memory, so are quite restricted in what you can install in addition to the basic OpenWrt.
They are limited to running SECN 3 based on OpenWrt BB because OpenWrt CC is too large to allow the mesh software modules to be installed.