I brought this up in a thread on another topic. I'm using a _lot_ of DC sources in my current project. Many of them, around half, are the equivalent of 'code constants'. In cases like these, an option to select an 'unchangeable' DC source would tell the compiler to generated a code constant instead of allocating data buffers. The user would not be able to change the value of an 'unchangeable' DC source from it's inspector when running. This should result in more efficient code.
Is something like this already available?