I have some victorian guest molds that I want to fill in the filligree with just white soap and then the rest in colored. Is there a trick to getting the white to just fill up the indentations, do I let it harden and then fill up the rest is there a temperature I should be pouring the soap at I am using Peaks Shea butter M&P. I am new to this I have only made candles but I am having fun with this.