I need to create a custom report, that I can embed on an html page. The scenario is this:

Table 1 (generated by form 1) has a few multi-select fields.

Table 2 (generated by form 2) has individual fields with the same choices of values available in the multi-select fields in Table 1

I'd like to generate a filtered report of Table 2 based on the criteria present in the multi-select field(s) of Table 1.

For example:

Table 1 has a multi select field with potential values of A, B, C (in any combination)

Table 2 has 4 fields: Field 1= text field; Field 2 = drop-down with "A" as a possible value; Field 3 = drop-down with "B" as a possible value; Field 4 = drop-down with "C" as a potential value

I'd like to generate an embedded report of table 2 that displays only those records where Fields 2-4 contain the values in the multi-select column of a given record in Table 1. 

(i.e. if the chosen record in Table 1's multi-select field has a value of "A, C", I want to filter Table 2 to display records with either "A" , "C" or "A and C" in the respective fields).

I know how to embed a filtered report using the embed URL with a parameter value, or multiple parameters (using URL?parameter1=value&parameter2=value). But I'm not sure how to apply a complex filter like this. My example is simplified - in reality, I have 10's of fields in Table 2 that contain possible values corresponding to several multi-select fields in Table 1.

I can do this in pure HTML format using a lot of conditional variables and display results using HTML tables, but it's unwieldy at scale, and I much prefer to retain the functionality of an embedded Creator Report.