Yes, but make sure you use the correct indents as in the documentation. For the example you gave, the two IP addresses would be allowed like this... (assume your addresses are /24 - Match CIDR..)
MyAccessProfile.pol entry AllowTheseSubnets { if match any { source-address 167.28.170.99 /24; source-address 167.28.137.57 /24; } then { permit; } }
Once you create the file and copy to the switch, use the command "check policy MyAccessProfile" to make sure the format for the file is correct. The above will only let those two addresses access telnet. Once you create the file you can use that with SSH and SNNMP too.
Bill