There are no limitations to the number of measures which you can select, but the expectation is that you are realistic and select the measures across different categories that are relevant for the Concept Idea you may have and that are aligned with the budget that you will be requesting.
If you are a company, you can find examples of measures in Section 2.4 of the NOFO, across three types of measures.
For proposers representing CSOs, the types of measures that can be applied for are limited to initiatives. CSOs will not be eligible for measures in policies or projects.