Is it possible to activate/deactivate a Service Flow OR an Classifier dynamically

I have created three Service flows in a CM config file.

Service flow 1 - 100MbpsDS/40MbpsUS ( priority 0 )
Service flow 2 - 150KbpsDS/150kbpsUS ( priority 5 )
Service flow 3 - 100kbpsDS/100kbsUS ( priority 7 )

I have defined an upstream packet classifier in Service flow 3 to capture all packets coming from CM IP stack
like below and send them through Service flow 1...

TLV 22 upstream packet classifer
S 22.1 Classifier reference = XX
S 22.3 Service flow reference = 1
S 22.5 Rule Priority = XY
S 22.6 Classifier Activation State = 1
S 22.13 CMIM = 8000

I have following questions....

1. Is it possible to change the Classifier activation state 1/0 from SNMP on the fly ? OR once a classifier has been define as Active,
the only way to disable it is via changing the config file and rebooting the modem ?

2. If I define two such upstream classifiers, is it possible to make one of them active and other deactive using SNMP ?
Idea being I would want the upstream traffic to either go via Service flow 1 or service flow 2 without having to reboot the modem.

TLV 22 upstream packet classifer
S 22.1 Classifier reference = XX
S 22.3 Service flow reference = 1 /* Through service flow 1 */
S 22.5 Rule Priority = XY
S 22.6 Classifier Activation State = 1
S 22.13 CMIM = 8000

TLV 22 upstream packet classifer
S 22.1 Classifier reference = XX
S 22.3 Service flow reference = 2
S 22.5 Rule Priority = XY
S 22.6 Classifier Activation State = 1 /* Through service flow 2 */
S 22.13 CMIM = 8000