Is there any way to add a regular schedule for stock buys/sells?

I have a pension account that sells a variable amount of shares each month and in the past I've had an investment account where I invest a fixed sum of cash each month, say £100, and the broker invests that value in a selected fund or stock.
It's easy to add a scheduled transfer of cash to/from an investment brokerage account but I can't see a way to schedule a stock transaction.

I do not believe there is any way to create an investment type transaction other than by importing it or creating it manually in an Investment Account in the Ledger View. It might be worth filing a wishlist bug for this, but there is still the problem of being able to specify the share price in the schedule. I suppose it could default to the most recent available price, but you would almost always need to adjust it anyway. In master branch, you can edit an investment transaction from the ledger for the brokerage account, but you cannot convert a transaction to/from an investment transaction vs a regular payment or transfer type transaction.
In the short term, you might want to schedule the creation of a dummy transaction in the brokerage account, at least to remind you to create the purchase transaction.

Thanks, I just wanted to check that I wasn't missing a way of doing it. I already have a regular cash transfer from the Brokerage account but, of course, if there is no associated share sale then the account shows as overdrawn each month. At present I am duplicating the previous share sale and adjusting the date and the numbers but it would be slightly more convenient to have it enter a dummy or approximate transaction each month so there is a bit less editing.

And as you mention it would not be a straightforward thing to implement because I'm drawing a set amount of money out of the pension each month and the pension company have the task of selling the correct number of shares to hit that target so both share quantity and price are variable.

The alternative would be for me to forget about the investment side of the pension and just have the monthly cash as a deposit from "outside" KMyMoney but that is not so pleasing to my control freak nature. I can't even bear it if something is a penny out due to rounding!