First. you would only be able to run Brackets with a PRO version of BTM (same as BLS). The bracket module is present in demonstration mode only for Standard users, that doesn't offer full functionality that the PRO version would. Upgrading to the PRO version will unlock the bracket feature fully.
Specifically, what bracket template do you wish to create? BTM does offer some options. I do not have my computer that runs my bowling software with me, so I can't offer any further help here. But if I (or anyone else reading this) knew what you want to do, we may be either able to help, OR inform you that a particular format won't work in BTM. I/we won't know if such a format can be done without knowing what your intent is.
Always check, download, and install the most recent update of your software to ensure that issues may have been corrected.