Now there is no staking, just POW mining. For you to be in only one pool use the pool long link and don't choose the pool from the drop-down table in consensus (webdollar.io). (check Telegram for full list of long links of pools)
When POS will be added, as it will be hybrid, you will have to stake your WEBDs in order to participate in the process. But in the same time for the POW blocks you will also be able to mine like you do now with CPUs.
The percentage of POS blocks was discussed to be 20 followed by 10 POW blocks, and so on.
Any infos on when the PoS will be implemented? More, will it be possible to leave the wallet open for PoS while avoiding to produce PoW?