Yes, even you can stake the rest of the amount you make can be a stake in the same validator, even I am doing the same thing because it will definitely help increase your holding as long as possible.
Thanks for reminding me of this! I will definitely stake again my rewards when I reach my target figure, and hopefully could do it by next week.

~snip~
For best chance of contacting the core team and lay down your proposal, I think it would be good if you could visit their social media channels
https://www.minter.network/#social and contact any admin present there.

You can configure the auto-delegation function to a specific node, so that with the required number of Bips on the balance, the system itself delegates them for you. I have been using this for a long time and dont worry that I need to monitor when there will be a certain balance.
Where we can see that option because every day I keep allocating the funds on a daily basis, if it is auto means definitely it will help us in the long term to make some decent profit through our staking. This option is quite impressive because it will automatically allocate the coins to specified validators.
You need to go to the console in the delegation section and go down below, there are 2 options for auto-delegation.
The first one is to make delegation transaction generation by writing the desired public key from the masternode to which you plan to delegate, the number of coins and the number of transactions that should go through automatically.
The second is to upload and send a file that contains a list of generated transactions!
I use the first method, do not forget that if you send any transaction, this will interrupt the order of auto-delegation!