Can you split a ROTH IRA account between to custodians and not have to restart the 5 year waiting period for withdawals?

I have a ROTH IRA for 7 years now.  I want to move it from eTrade to another custodian, but wondering if that will reset my 5 year waiting period for withdrawals from this ROTH.  Can I split the ROTH and move half of its holdings to another Custodian with half remaining at eTrade and not have to create a new ROTH account with a new 5 year waiting period?