Adding Multiple Commission Schemes to a Single Asset

[cmal]

Hi, I want to add dividend info to my stock asset, I searched and found the following topic:

https://community.backtrader.com/topic/97/taking-into-account-of-periodic-payments/2
https://www.backtrader.com/blog/posts/2016-08-22-credit-interest/credit-interest/

In those posts, authors said one can add dividends as commission. But I read the source code and found that only one commission scheme for one asset is supported. So if the same asset already has a (real) commission scheme, the dividend as a commission will replace the real commission.

How can I keep the real commission, at the same time add a dividend as a commission scheme?

Thanks a lot!