One limitation of specifying Direct, indirect, and total effects through the Analysis Properties box in AMOS is that the Indirect effects (and bootstrap confidence intervals) do not allow the researcher to isolate a specific indirect effect of one variable on another in the case in which there may be multiple mediation. The Indirect effect (and tests) that are printed out are for the total indirect effect (TIE) of one variable on another. In this video, I demonstrate how you can use the User Defined Estimands approach to obtaining specific indirect effects in the event you are testing multiple mediation.
A copy of the dataset can be obtained here: https://drive.google.com/file/d/1e5KGSX73nNPLne0hAYOuST61vjSorDVD/view
A copy of the path diagram with labeled parameters can be obtained here: https://drive.google.com/file/d/1uLoR3HYvOLSKI26_ZeG1t5_iMUFCRuvW/view
A copy of the file containing my example of user defined estimands can be downloaded here (although you should be able to follow the video and set up your own file): https://drive.google.com/file/d/1H14ttfy4EKtqz6zVBciDR9QBzWMixb50/view
Other resources that discuss the use of User defined Estimands (including specifying specific indirect effects) can be found at the following links:
http://amosdevelopment.com/features/user-defined/user-defined-simple/Tutorial2/pdf/SimpleUserDefined2.pdf
http://amosdevelopment.com/features/user-defined/user-defined-general/index.html,
For more instructional videos and other materials on various statistics topics, be sure to my webpages at the links below:
Introductory statistics:
https://sites.google.com/view/statisticsfortherealworldagent/home
Multivariate statistics:
https://sites.google.com/view/statistics-for-the-real-world/home