The purpose of this study is to create a support for setting concept and timing when making a draft. The authors extract trial elements from existing works or from their own works, and store them in a database. Our supporting tool helps to set the ordeal elements and their insert timing. In order to examine the usefulness of this tool, we performed experiments where we asked the users to compare the number of plots in setting concepts and the timings before and after using our support tool. Test results showed that they were able to create more plots when using our support tool.