Can I change the allocated amount that I have set for my Copytrader?

Can I change the allocated amount that I have set for my Copytrader?

Absolutely, on the Copytraders profile page, select the pencil icon to change your allocated amount:

This change will be applied to the new trades from that moment onward.
The following positions that open, will use a percentage specified from your Copytrader, from the new allocated amount.