Well, if you will install fancy light switches that likely didn't exist way back when your house was compliant with current regs at the time
I asked a question in a DIY forum. re-wireing a house is not DIY. Its either. Yes you can run a CPC like that or no you can't do that sorry just keep the plastic switch!
Yes, you did ask a question on a DIY forum, and rewiring a house can be DIY'd providing the correct routes are followed re notification of the work to the LABC. We could provide yes/no answers to every post, but that alone adds little value to the discussion. For example, another recent post asks if it's possible to run 100w of 12v halogen lighting from a 65VA transformer. Rather than simply say no, is it not more useful to recommend the correct way to do the job?
Oh, and FWIW, my comment was tongue in cheek - hence the