This is the use case that can be solved using Identity Pre-Shared Key (IPSK) without RADIUS, which allows you to configure multiple PSKs for a single SSID. IPSK without RADIUS allows a network administrator to use multiple PSKs per SSID without the use of a RADIUS server. Further, the feature allows you to assign group policies in the dashboard based on the PSK used by the client device to authenticate to the WiFi network. There is a limit of configuring up to 50 PSKs per SSID in Dashboard.
This document will walk you through on how to configure IPSK without RADIUS in the dashboard.
NOTE: This feature is only supported on firmware MR 27.1 onwards and all 802.11ac wave2 and 802.11ax APs. Hence networks with older APs will not have this feature enabled for them even with a firmware upgrade.