Hi, there.
Are you asking if you could make it to where if you had something like the word, 'please' at the end of your spoken phrase, it would be ignored?
Although this can be added and I can certainly see its utility, from experience if this is part of your normal expressions it may be more reliable if you edited your commands and put, '[please]' as a dynamic section at the end of the commands that you do this with the most. For example, 'fire weapons[please]' would allow you to say, 'fire weapons' or 'fire weapons please' to execute the same command. Since the speech engine is processing the phrases as a whole, 'fire weapons' as a spoken phrase would be very reliable if you said, 'fire weapons', but saying, 'fire weapons please' may trip up the speech engine just a bit. The
prefix exclusions are in place as a kind of last resort to help combat noises created by speaking (pops, clicks, breath, etc). You'd see a lot of, 'unrecognized: if fire weapons' and, 'unrecognized: it fire weapons' without it
Something else to consider if you have a recent beta is that you can also use the, 'restricted continuous speech' option for, 'recognition' on the command screen. That would be slightly more reliable than tacking on a suffix exclusion as well. With that option set, you can say, 'fire weapons please', 'fire weapons now', 'fire weapons turkey', etc. and it would probably execute faster than normal. This of course, is beta and experimental.