Managed Profit Miner: It's not recommended to specify the command line on the miner itself, as it will be applied no matter which mining software is running. The recommendation is to configure this on the Profit profile. Right click on the miner and select Edit Profit Profile. Select the mining software (for example Ccminer), click Configure and enter the parameters to the mining software.
If the configuration is required only for a specific algorithm for the mining software, the configuration can instead be made in the Options dialog, Managed Software section. Edit the mining software (for example Ccminer) and use the field User defined command line argument.
Managed Miner: Right click on the miner and select Properties. Go to the Command Line section and enter the parameters to the mining software.