DEV_DISABLE_ACP_SESSION_TIMEOUT for Designers Mode

[The Old Man]

Is it possible to get this to also apply to Designers Mode? It only seems to work in Dev Mode

// Disable ACP session timeout?
				// Disables the ACP session timeout check. Useful for developing where you may
				// get logged out of the ACP in between requests while working.
				// Has no effect if IN_DEV is FALSE
				'DEV_DISABLE_ACP_SESSION_TIMEOUT' => FALSE,

Many thanks! 😞