Poc,
Here is the Skuid API documentation-> https://docs.skuid.com/latest/en/skuid/api/skuid_model.html
You can load (i.e. re-query) a model with something like:
var oppmodel = skuid.model.getModel('OppByProduct');<br>oppmodel.load();
You can show/hide a component by locating its unique identifier and issuing the following:
skuid.$('#sk-PQVRj-123').show();
skuid.$('#sk-PQVRj-123').hide();
Thanks,
Bill