Oracle Linux 7.6 with LXC 1.1.5 - how to set kernel.sem in a container (or inherit it =from the host OS)?

I’m running LXC 1.1.5 (I think) on Oracle Linux 7.6 (kernel 3.10.0-957.21.3.el7.x86_64). At the host level I have

kernel.sem = 4000 400000 2000 2560

which are settings that I also need in the container(s). However in the containers I see:

kernel.sem = 250 32000 32 128

which is far too small for my needs.

How can I either (a) get the container to inherit the value of kernel.sem from the host or (b) set an explicit value for kernel.sem (which will be the same value as the hist uses) in the container?

U have searched and searched for documentation on this to no avail; the one reference I found I the official LXC documentation did not work (it gave a parse error for the config file so I suspect it may only apply to a newer version of LXC.).

Can anyone help me?