How to change the default WPS password in Websphere Integration Developer

Here is the file
~/.eclipse/ibm.websphere.integration.developer_7.0.0_1741360425/configuration/.settings/com.ibm.wbit.runtime.core.prefs 
and that context is to be changed:
security.user.wps_61=admin
security.password.wps_61={xor}PjsyNjE\=
For password encoding that entry might be helpful.
UPDATE: From now on you do not have to enter embedded WebSphere user/password every time you start WID. For Windows, the directory and file can somewhere in WID61\configuration\.settings\com.ibm.wbit.runtime.core.prefs. I think it could be in similar place on Linux, but that depends on your user's write rights to WID directory. I should have issued a proper umask prior to the installation apparently - but when you read installation docs few months after the installation, such things happen.