I can export other config item . but I met a Execption Time out ([HttpException (0x80004005): TimeOut)when I try to export custom section.
How I get the root cause? how to solve this problem.
Please try to add the following section into the <system.web> section in the Web\Portal\web.config
<httpRuntime executionTimeout="43200" maxRequestLength="104856" />
you can extend the timeout value to avoid the error when the custom section data is too large and take too long to load.
hope this helps.